Chicago, IL CHI to Denver, CO DEN flight with United

Wed 13 May
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Journey information

Overview: Chicago, IL to Denver, CO flight

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Icon of flight

Flights from Chicago, IL to Denver, CO depart on average 66 times per day, taking around 3h 23m. Cheap flight tickets for this journey start at £42 if you book in advance.

There are 11 flights per day. The earliest flight runs at 00:01, the last at 23:58. The fastest flight covers the 1475 km distance in 2h 44m. June is the cheapest month to fly.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
1475 km
Average flight duration
3h 23m
Cheapest ticket price
£42
Flights per day
66
Direct flights
11
Fastest flight
2h 44m
First flight
0:01
Last flight
23:58
Cheapest Month
Jun
Cheapest Day
Mon
High Season
Oct - Dec
Low Season
Jul - Sept
Busiest Day
Fri
Least Busy Day
Mon
Best time to book
49 days
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

The cheapest and fastest flights from Chicago, IL to Denver, CO

Showing times and prices for 13 May

Cheapest price

£69

Average price

£448

Fastest journey

2 h 47 m

Average duration

2 h 51 m

Flights per day

118

Distance

1475 km

Cheap tickets

The best way to find a cheap flight ticket from Chicago, IL to Denver, CO is to book your journey as far in advance as possible and to avoid travelling at rush hour.

The average ticket from Chicago, IL to Denver, CO will cost around £448 if you buy it on the day, but you can find cheap flight tickets today for only £69.

Fast flights

Of the 118 flights that leave Chicago, IL for Denver, CO every day 18 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

These direct flights cover the 1475 km distance in an average of 2 h 51 m but if you time it right, some flights will get you there in just 2 h 47 m .

The slowest flights will take 2 h 53 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

  • frontier airlinesF91483
    21:373h07
    O'Hare International Airport
    23:44Denver International Airport
    £691One-way
    0 changes
  • frontier airlinesF92198 · F93599
    13:599h25
    O'Hare International Airport
    22:24Denver International Airport
    £1361One-way
    1 change
  • American AirlinesAA2069
    22:192h47
    O'Hare International Airport
    0:06Denver International Airport
    £1391One-way
    0 changes
  • American AirlinesAA1387
    20:522h53
    O'Hare International Airport
    22:45Denver International Airport
    £1391One-way
    0 changes
  • American AirlinesAA2021
    15:032h59
    O'Hare International Airport
    17:02Denver International Airport
    £1391One-way
    0 changes

Travel Information

Compare train, coach and flight for Chicago, IL to Denver, CO

Omio recommends booking the train as it is the most popular option from Chicago, IL to Denver, CO among Omio's users. If you are prioritising price take the coach with prices starting from £58. For those with little time consider booking a flight which can get you there in 3h 23m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.4 - 1.3kg. The ticket price range depends on the travel mode: a coach costs an average of £58, and a train costs an average of £84.

Distance: 1475 km

Compare flight with

Flight
Most popular
Train
Coach

£127

Average Price

£215

Average Price

£114

Average Price

Cheapest

6h 23m

Average total duration

Fastest

3h 23m

Onboard

+

3h 0m

Additional time*

19h 21m

Average total duration

18h 51m

Onboard

+

30m

Additional time*

22h 49m

Average total duration

22h 19m

Onboard

+

30m

Additional time*

4.4 - 8.8kg

CO2 emissions

0.4 - 1.3kg

CO2 emissions

Lowest

1.5 - 3.7kg

CO2 emissions

American Airlines

Most popular airline

Amtrak

Most popular train company

Greyhound

Most popular bus company

Direct Options

Direct Options

Direct Options

Additional time: Average total travel duration to departure point, security checks and transfers.

Live departures

Chicago, IL to Denver, CO flight times

The table below shows live departures for Chicago, IL to Denver, CO flights for today, Tuesday 12 May. You can also manually refresh the results below to see updated flight journeys.

Last updated at
ProviderDepartsDurationArrivesChanges
Tickets
American AirlinesAA357 · AA23595:00 O'Hare International Airport
5h37
9:37 Denver International Airport1 change
American AirlinesAA2842 · AA14675:00 O'Hare International Airport
6h39
10:39 Denver International Airport1 change
Alaska AirlinesAS715 · AS623 · AS30466:00 O'Hare International Airport
18h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS715 · AS650 · AS33326:00 O'Hare International Airport
13h25
18:25 Denver International Airport2 changes
Alaska AirlinesAS715 · AS13326:00 O'Hare International Airport
11h02
16:02 Denver International Airport1 change
UnitedUA3436 · UA16666:00 O'Hare International Airport
5h10
10:10 Denver International Airport1 change
Alaska AirlinesAS715 · AS7866:00 O'Hare International Airport
12h11
17:11 Denver International Airport1 change
Alaska AirlinesAS715 · AS621 · AS30466:00 O'Hare International Airport
18h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS715 · AS765 · AS30466:00 O'Hare International Airport
18h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS715 · AS650 · AS30466:00 O'Hare International Airport
18h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS715 · AS697 · AS30466:00 O'Hare International Airport
18h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS715 · AS6026:00 O'Hare International Airport
16h49
21:49 Denver International Airport1 change
American AirlinesAA760 · AA9356:05 O'Hare International Airport
7h24
12:29 Denver International Airport1 change
frontier airlinesF91596 · F932936:55 O'Hare International Airport
8h09
14:04 Denver International Airport1 change
American AirlinesAA1555 · AA9356:57 O'Hare International Airport
6h32
12:29 Denver International Airport1 change
American AirlinesAA1555 · AA4206:57 O'Hare International Airport
7h50
13:47 Denver International Airport1 change
UnitedUA12177:00 O'Hare International Airport
2h53
8:53 Denver International Airport0 changesdirect
UnitedUA5401 · UA15797:00 O'Hare International Airport
6h32
12:32 Denver International Airport1 change
American AirlinesAA695+envoy airAA41127:04 O'Hare International Airport
6h54
12:58 Denver International Airport1 change
UnitedUA539 · UA20497:15 O'Hare International Airport
6h11
12:26 Denver International Airport1 change
UnitedUA539 · UA2487:15 O'Hare International Airport
8h40
14:55 Denver International Airport1 change
Alaska AirlinesAS587 · AS621 · AS30468:00 O'Hare International Airport
16h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS587 · AS765 · AS30468:00 O'Hare International Airport
16h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS587 · AS6828:00 O'Hare International Airport
28h24
11:24 Denver International Airport1 change
Alaska AirlinesAS587 · AS623 · AS30468:00 O'Hare International Airport
16h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS587 · AS7868:00 O'Hare International Airport
10h11
17:11 Denver International Airport1 change
Alaska AirlinesAS587 · AS697 · AS30468:00 O'Hare International Airport
16h59
23:59 Denver International Airport2 changes
Alaska AirlinesAS587 · AS13328:00 O'Hare International Airport
9h02
16:02 Denver International Airport1 change
Alaska AirlinesAS587 · AS6028:00 O'Hare International Airport
14h49
21:49 Denver International Airport1 change
American AirlinesAA16478:05 O'Hare International Airport
2h52
9:57 Denver International Airport0 changesdirect
American AirlinesAA481 · AA4208:20 O'Hare International Airport
6h27
13:47 Denver International Airport1 change
UnitedUA2508:40 O'Hare International Airport
2h55
10:35 Denver International Airport0 changesdirect
UnitedUA528 · UA2488:40 O'Hare International Airport
7h15
14:55 Denver International Airport1 change
UnitedUA1414 · UA13058:40 O'Hare International Airport
7h15
14:55 Denver International Airport1 change
UnitedUA2162 · UA15798:45 O'Hare International Airport
4h47
12:32 Denver International Airport1 change
UnitedUA2465 · UA46758:46 O'Hare International Airport
4h59
12:45 Denver International Airport1 change
UnitedUA2320 · UA21688:46 O'Hare International Airport
6h40
14:26 Denver International Airport1 change
UnitedUA1778 · UA55018:47 O'Hare International Airport
4h32
12:19 Denver International Airport1 change
Alaska AirlinesAS1470 · AS30068:50 O'Hare International Airport
29h49
13:39 Denver International Airport1 change
Alaska AirlinesAS1470 · AS685 · AS6028:50 O'Hare International Airport
13h59
21:49 Denver International Airport2 changes
Alaska AirlinesAS1470 · AS33328:50 O'Hare International Airport
10h35
18:25 Denver International Airport1 change
Alaska AirlinesAS1470 · AS30468:50 O'Hare International Airport
16h09
23:59 Denver International Airport1 change
UnitedUA723 · UA58929:01 O'Hare International Airport
4h44
12:45 Denver International Airport1 change
UnitedUA723 · UA52669:01 O'Hare International Airport
6h47
14:48 Denver International Airport1 change
UnitedUA2418 · UA24119:07 O'Hare International Airport
9h48
17:55 Denver International Airport1 change
American AirlinesAA1693 · AA18329:45 O'Hare International Airport
7h34
16:19 Denver International Airport1 change
American AirlinesAA22769:52 O'Hare International Airport
2h52
11:44 Denver International Airport0 changesdirect
UnitedUA5405 · UA130510:30 O'Hare International Airport
5h25
14:55 Denver International Airport1 change
UnitedUA5939 · UA119510:37 O'Hare International Airport
5h01
14:38 Denver International Airport1 change
American AirlinesAA1120 · AA132210:41 O'Hare International Airport
7h54
17:35 Denver International Airport1 change
American AirlinesAA1120 · AA183210:41 O'Hare International Airport
6h38
16:19 Denver International Airport1 change
UnitedUA2654 · UA47910:44 O'Hare International Airport
7h01
16:45 Denver International Airport1 change
UnitedUA180310:49 O'Hare International Airport
2h56
12:45 Denver International Airport0 changesdirect
UnitedUA1044 · UA241111:05 O'Hare International Airport
7h50
17:55 Denver International Airport1 change
American AirlinesAA2080 · AA163611:15 O'Hare International Airport
7h55
18:10 Denver International Airport1 change
American AirlinesAA1938 · AA132211:43 O'Hare International Airport
6h52
17:35 Denver International Airport1 change
American AirlinesAA1938 · AA183211:43 O'Hare International Airport
5h36
16:19 Denver International Airport1 change
UnitedUA5234 · UA69612:09 O'Hare International Airport
5h16
16:25 Denver International Airport1 change
American AirlinesAA2812 · AA132212:30 O'Hare International Airport
6h05
17:35 Denver International Airport1 change
American AirlinesAA2812 · AA223512:30 O'Hare International Airport
8h25
19:55 Denver International Airport1 change
UnitedUA1448 · UA47012:40 O'Hare International Airport
6h45
18:25 Denver International Airport1 change
UnitedUA111312:40 O'Hare International Airport
2h56
14:36 Denver International Airport0 changesdirect
UnitedUA247 · UA194312:40 O'Hare International Airport
6h39
18:19 Denver International Airport1 change
UnitedUA5249 · UA151012:40 O'Hare International Airport
5h05
16:45 Denver International Airport1 change
UnitedUA5414 · UA49812:40 O'Hare International Airport
5h30
17:10 Denver International Airport1 change
UnitedUA4389 · UA51412:45 O'Hare International Airport
4h45
16:30 Denver International Airport1 change
UnitedUA3634 · UA233812:45 O'Hare International Airport
5h21
17:06 Denver International Airport1 change
UnitedUA3615 · UA274512:47 O'Hare International Airport
4h43
16:30 Denver International Airport1 change
UnitedUA1830 · UA178112:57 O'Hare International Airport
6h28
18:25 Denver International Airport1 change
UnitedUA4558 · UA172913:01 O'Hare International Airport
5h39
17:40 Denver International Airport1 change
UnitedUA5930 · UA463413:18 O'Hare International Airport
5h47
18:05 Denver International Airport1 change
UnitedUA74213:43 O'Hare International Airport
2h56
15:39 Denver International Airport0 changesdirect
UnitedUA1617 · UA576113:55 O'Hare International Airport
6h40
19:35 Denver International Airport1 change
UnitedUA1617 · UA233813:55 O'Hare International Airport
4h11
17:06 Denver International Airport1 change
frontier airlinesF92198 · F9359913:59 O'Hare International Airport
9h25
22:24 Denver International Airport1 change
American AirlinesAA1522 · AA152914:05 O'Hare International Airport
7h26
20:31 Denver International Airport1 change
Alaska AirlinesAS325 · AS134614:13 O'Hare International Airport
29h12
18:25 Denver International Airport1 change
Alaska AirlinesAS325 · AS68414:13 O'Hare International Airport
21h53
11:06 Denver International Airport1 change
Alaska AirlinesAS325 · AS2241 · AS68214:13 O'Hare International Airport
22h11
11:24 Denver International Airport2 changes
Alaska AirlinesAS325 · AS3048 · AS68214:13 O'Hare International Airport
22h11
11:24 Denver International Airport2 changes
UnitedUA234714:20 O'Hare International Airport
2h56
16:16 Denver International Airport0 changesdirect
UnitedUA3657 · UA212314:30 O'Hare International Airport
4h54
18:24 Denver International Airport1 change
UnitedUA2298 · UA227214:35 O'Hare International Airport
4h40
18:15 Denver International Airport1 change
UnitedUA224015:00 O'Hare International Airport
2h52
16:52 Denver International Airport0 changesdirect
American AirlinesAA202115:03 O'Hare International Airport
2h59
17:02 Denver International Airport0 changesdirect
American AirlinesAA2257 · AA223515:07 O'Hare International Airport
5h48
19:55 Denver International Airport1 change
American AirlinesAA2257 · AA57715:07 O'Hare International Airport
7h52
21:59 Denver International Airport1 change
American AirlinesAA1052 · AA315615:26 O'Hare International Airport
7h11
21:37 Denver International Airport1 change
Alaska AirlinesAS407 · AS68215:37 O'Hare International Airport
20h47
11:24 Denver International Airport1 change
Alaska AirlinesAS407 · AS137515:37 O'Hare International Airport
23h24
14:01 Denver International Airport1 change
Alaska AirlinesAS407 · AS78615:37 O'Hare International Airport
26h25
17:02 Denver International Airport1 change
Alaska AirlinesAS1447 · AS304615:52 O'Hare International Airport
9h07
23:59 Denver International Airport1 change
Alaska AirlinesAS1447 · AS300615:52 O'Hare International Airport
22h47
13:39 Denver International Airport1 change
Alaska AirlinesAS1447 · AS331815:52 O'Hare International Airport
28h19
19:11 Denver International Airport1 change
frontier airlinesF92792 · F9331115:55 O'Hare International Airport
8h16
23:11 Denver International Airport1 change
frontier airlinesF92792 · F9173315:55 O'Hare International Airport
17h29
8:24 Denver International Airport1 change
frontier airlinesF93135 · F9485516:05 O'Hare International Airport
28h24
19:29 Denver International Airport1 change
frontier airlinesF93135 · F9322916:05 O'Hare International Airport
17h01
8:06 Denver International Airport1 change
UnitedUA220716:10 O'Hare International Airport
2h56
18:06 Denver International Airport0 changesdirect
American AirlinesAA2988 · AA57716:40 O'Hare International Airport
6h19
21:59 Denver International Airport1 change
UnitedUA197417:45 O'Hare International Airport
2h55
19:40 Denver International Airport0 changesdirect
Alaska AirlinesAS584 · AS78617:52 O'Hare International Airport
24h10
17:02 Denver International Airport1 change
Alaska AirlinesAS584 · AS68217:52 O'Hare International Airport
18h32
11:24 Denver International Airport1 change
Alaska AirlinesAS584 · AS60217:52 O'Hare International Airport
28h59
21:51 Denver International Airport1 change
Alaska AirlinesAS584 · AS137517:52 O'Hare International Airport
21h09
14:01 Denver International Airport1 change
UnitedUA1475 · UA106618:25 O'Hare International Airport
6h33
23:58 Denver International Airport1 change
UnitedUA116819:10 O'Hare International Airport
2h58
21:08 Denver International Airport0 changesdirect
Alaska AirlinesAS1466 · AS300619:59 O'Hare International Airport
18h40
13:39 Denver International Airport1 change
Alaska AirlinesAS1466 · AS331819:59 O'Hare International Airport
24h12
19:11 Denver International Airport1 change
Alaska AirlinesAS1466 · AS302119:59 O'Hare International Airport
28h50
23:49 Denver International Airport1 change
UnitedUA32920:20 O'Hare International Airport
2h59
22:19 Denver International Airport0 changesdirect
Alaska AirlinesAS329 · AS3034 · AS134620:48 O'Hare International Airport
22h37
18:25 Denver International Airport2 changes
Alaska AirlinesAS329 · AS68220:48 O'Hare International Airport
15h36
11:24 Denver International Airport1 change
Alaska AirlinesAS329 · AS64220:48 O'Hare International Airport
28h11
23:59 Denver International Airport1 change
Alaska AirlinesAS329 · AS60220:48 O'Hare International Airport
26h03
21:51 Denver International Airport1 change
Alaska AirlinesAS329 · AS78620:48 O'Hare International Airport
21h14
17:02 Denver International Airport1 change
Alaska AirlinesAS329 · AS137520:48 O'Hare International Airport
18h13
14:01 Denver International Airport1 change
Alaska AirlinesAS329 · AS2280 · AS134620:48 O'Hare International Airport
22h37
18:25 Denver International Airport2 changes
American AirlinesAA138720:52 O'Hare International Airport
2h53
22:45 Denver International Airport0 changesdirect
frontier airlinesF92445 · F9315620:56 O'Hare International Airport
14h08
10:04 Denver International Airport1 change
frontier airlinesF92445 · F9434620:56 O'Hare International Airport
17h16
13:12 Denver International Airport1 change
frontier airlinesF9148321:37 O'Hare International Airport
3h07
23:44 Denver International Airport0 changesdirect
UnitedUA76721:54 O'Hare International Airport
2h56
23:50 Denver International Airport0 changesdirect
American AirlinesAA206922:19 O'Hare International Airport
2h47
0:06 Denver International Airport0 changesdirect

This is the last flight of the day.

Find all the dates and times for this journey

How far in advance should I book flight tickets from Chicago, IL to Denver, CO?

The best time to book your flight from Chicago, IL to Denver, CO is 77 days before departure. See how prices for flights change on the Chicago, IL to Denver, CO route.
Prices are for one-way tickets for one passenger from Chicago, IL to Denver, CO per month. Insights are sourced from fares found by Omio users in the last 12 months. Current prices may differ as prices vary depending on the time of day, class or how far in advance you book your flight from Chicago, IL to Denver, CO.

Compare prices and tickets Chicago, IL to Denver, CO by train, coach or flight

Compare train, coach and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

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Why should you book Chicago, IL to Denver, CO flights with Omio?

American Airlines as well as United or frontier airlines offer flights services from Chicago, IL to Denver, CO.
Omio is an official ticket reseller for all your travel options from Chicago, IL to Denver, CO.

Why book with Omio vs American Airlines?

  • Compare with other providers: On Omio, you can not only buy tickets for American Airlines, but also compare tickets for the likes of United or frontier airlines to find the best option for your trip from Chicago, IL to Denver, CO.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare American Airlines with all available travel options, which are train, bus and flight to ensure you get the best deal for traveling from Chicago, IL to Denver, CO.

Why book with Omio over Trip, Edreams or Skyscanner?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of United or frontier airlines to find the best option for your trip from Chicago, IL to Denver, CO.
  • Multiple modes of transport: Omio allows you to compare travel options including train, bus and flight to find the ideal travel option from Chicago, IL to Denver, CO.

Airlines: American Airlines, United, frontier airlines from Chicago, IL to Denver, COFind the best flights between Chicago, IL to Denver, CO with Omio's travel partners American Airlines, United, frontier airlines from £42. We can find you the best deals, schedules and tickets when comparing and booking the best trip.

United

About
United Airlines, established in 1926, is a major U.S. airline headquartered in Chicago, Illinois. Operating an extensive domestic and international network, United serves more destinations than any other airline, connecting travelers across six continents. The airline's eight hubs include Chicago–O'Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, Washington–Dulles, and Guam. As a founding member of the Star Alliance, United offers a comprehensive range of services, including regional flights through United Express, catering to both leisure and business travelers. The airline is committed to sustainability, investing in sustainable aviation fuel and innovative technologies to reduce its environmental impact.
Luggage & cancellation policy
Average Duration
2h 53m
Cheapest Price
£143
United frequency
41 a day
Luggage included
Carry-on baggage allowance is 7kg total (2 pieces max. ) for both Choice and Flex fares on United Airlines and Virgin Australia flights.
Additional luggage
Excess baggage fees apply for additional checked luggage beyond the standard allowance.
Luggage storage
Both airlines provide checked baggage services for storing luggage during flights.
Cancellation Policy
Cancellation fees apply per person, per booking, with specific fees for different fare types.
Refund
Not applicable to flights; however, full refunds are available if flights are canceled by the airline.
Pregnant on board
Pregnant passengers are permitted to travel, with specific guidelines and medical certificates required after a certain gestational period.
Unaccompagned minor
Unaccompanied minors are permitted to travel, with specific age restrictions and services provided.
Amenities on board the airplane
Wifi
Food sold onboard
Meals and snacks are included on international flights operated by United Airlines and Virgin Australia.
Seat reservation
Seat selection may incur additional fees, depending on the fare type and airline.
Toilets
USB plugs
Accessibility
United Airlines and Virgin Australia offer services to and within Australia, providing accessible travel options for passengers with mobility needs.
Bikes
Both airlines permit bicycles onboard, with specific guidelines and fees.
Pets
United Airlines and Virgin Australia allow pets onboard, subject to specific policies and fees.

American Airlines

About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
2h 44m
Cheapest Price
£42
American Airlines frequency
6 a day
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.

frontier airlines

About
Frontier Airlines is a major American ultra-low-cost carrier headquartered in Denver, Colorado, operating flights to over 120 destinations across the United States, Caribbean, Mexico, and Central America. Known for its \Low Fares Done Right\" philosophy, Frontier focuses on offering affordable travel by allowing passengers to choose and pay only for the services they need, such as seat selection or baggage. The airline is also recognized for its commitment to fuel efficiency, claiming to be \"America's greenest airline\" due to its modern, lightweight aircraft and operational practices. A distinctive feature of Frontier is the animal featured on the tail of each aircraft, highlighting North American wildlife."
Luggage & cancellation policy
Average Duration
2h 58m
Cheapest Price
£48
frontier airlines frequency
12 a day
Luggage included
Personal item (18 x 14 x 8 inches) included
Additional luggage
Checked bag fees start at $79 per bag
Cancellation Policy
Non-refundable tickets, changes permitted for fee starting at $79 plus fare difference
Pregnant on board
Pregnant women can travel up to 7 days before due date, medical certificate required after 36 weeks
Unaccompagned minor
Children ages 5-14 can travel alone for $100 fee each way, must be nonstop flight only
Amenities on board the airplane
Wifi
Accessibility
Frontier Airlines offers assistance for passengers with disabilities, including wheelchair service and boarding assistance. Passengers are encouraged to request these services in advance to ensure availability and proper arrangements.

FAQs: Chicago, IL to Denver, CO flights

Find answers to the most common questions about traveling from Chicago, IL to Denver, CO by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Denver, CO, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from Chicago, IL to Denver, CO can start from as little as £42 when you book in advance. The average flight ticket price for Chicago, IL to Denver, CO is £127; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from Chicago, IL to Denver, CO is 2h 44m to travel the 1475 km long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from Chicago, IL to Denver, CO leaves at 0:01. Plan your trip with the Journey Planner   from Omio.
The latest flight from Chicago, IL to Denver, CO leaves at 23:58.
Yes, there are 11 direct flights a day from Chicago, IL to Denver, CO with American Airlines, United, frontier airlines. Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from Chicago, IL to Denver, CO, you can count on American Airlines, United, frontier airlines for the best way to get you to Denver, CO. You can also check all possible airlines who offer a service between Chicago, IL and Denver, CO and compare the amenities they offer before buying a plane ticket.
Flights from Chicago, IL to Denver, CO generally leave from O'Hare International Airport and arrive in Denver International Airport .O'Hare International Airport is 3 km away from Chicago, IL city centre and Denver International Airport is 18 km from Denver, CO city centre.
The cheapest month for a flight from Chicago, IL to Denver, CO is June.
It's helpful to compare your options as there are 3 ways to travel between Chicago, IL and Denver, CO including taking a train, coach and flight.
Since neither Chicago, IL nor Denver, CO are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 1 h between Chicago, IL and Denver, CO all year round.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.

popular airports

Important Stations and Airports in Chicago, IL and Denver, CO

Chicago
Denver
The major airport for departures in Chicago is O'Hare International Airport. Find all the information you need to know about services, amenities and connections at O'Hare International Airport for your trip from Chicago to Denver.
O'Hare International Airport (ORD)WifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rental
Amenities at airport
WifiWifi
ShoppingShopping
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
Car RentalCar Rental
information
address
Address
10000 W O'Hare Ave, Chicago, IL 60666, USA
ticketOfficeHours
Distance to city center
3 km
carConnection
Car connection
I-190, Exit 1
Wifi
Wifi
  • Free Wi-Fi available throughout the airport.
Shopping
Shopping
  • Shops are located in all terminals, including duty-free and brands like Hudson and MAC Cosmetics.
Parking
Parking
  • Parking available with options including hourly, daily, and economy lots, approximately 2.85€ ($3) per hour.
Dining
Dining
  • Restaurants are located in all terminals, offering a variety of cuisines including American and intertiol. Top options include Tortas Frontera and Publican Tavern.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Elevators, ramps, toilets
WC
WC
  • Available throughout the airport.
Hotel
Hotel
  • Hotels such as Hilton Chicago O'Hare are located on airport grounds, with others like the Hyatt Regency nearby.
Shower
Shower
  • Showers are available in some lounges, such as the United Club, but access may require a fee or membership.
Lounge
Lounge
  • Lounges available, including United Club and American Airlines Admirals Club.
Lost and Found Office
Lost and Found Office
  • Lost and Found located in terminal 1, near the baggage claim area.
Car Rental
Car Rental
  • Car rental services are available at the Multi-Modal Facility, with companies like Hertz and Avis.
Public transport options for O'Hare International Airport
  • CTA Blue Line, O'Hare Station, 45 minutes to city center

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