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

Tue, 11 Nov
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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 37 times per day, taking around 3h 15m. Cheap flight tickets for this journey start at £24 if you book in advance.

There are 9 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 35m. October 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 15m
Cheapest ticket price
£24
Flights per day
37
Direct flights
9
Fastest flight
2h 35m
Cheapest month to travel
October
First flight
00:01
Last flight
23:58
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 Nov

Cheapest price

£114

Average price

£553

Fastest journey

2 h 41 m

Average duration

2 h 46 m

Flights per day

58

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 £553 if you buy it on the day, but you can find cheap flight tickets today for only £114.

Fast flights

Of the 58 flights that leave Chicago, IL for Denver, CO every day 14 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 46 m but if you time it right, some flights will get you there in just 2 h 41 m .

The slowest flights will take 2 h 48 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
06:002h41
O'Hare International Airport
07:41Denver International Airport
£1141One-way
0 changes
Frontier AirlinesF93243 · F94463
14:427h27
O'Hare International Airport
21:09Denver International Airport
£1311One-way
1 change
Frontier AirlinesF93142 · F92369
11:509h11
O'Hare International Airport
20:01Denver International Airport
£1311One-way
1 change
Frontier AirlinesF93135 · F93227
13:369h53
O'Hare International Airport
22:29Denver International Airport
£1371One-way
1 change
Frontier AirlinesF92792 · F91733
05:2527h50
O'Hare International Airport
08:15Denver International Airport
£1371One-way
1 change

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 £62. For those with little time consider booking a flight which can get you there in 3h 15m. 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 £62, and a train costs an average of £125.

Distance: 1475 km

Compare flight with

Flight
Most popular
Train
Coach

£139

Average Price

£191

Average Price

£135

Average Price

Cheapest

6h 15m

Average total duration

Fastest

3h 15m

Onboard

+

3h 0m

Additional time*

19h 9m

Average total duration

18h 39m

Onboard

+

30m

Additional time*

23h 48m

Average total duration

23h 18m

Onboard

+

30m

Additional time*

4.4 - 8.8kg

CO2 emissions

0.4 - 1.3kg

CO2 emissions

Lowest

1.5 - 3.7kg

CO2 emissions

United

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, Wednesday 12 November. You can also manually refresh the results below to see updated flight journeys.

Last updated at 04:38
ProviderDepartsDurationArrivesChanges
Tickets
unitedUA79113:10 O'Hare International Airport
2h48
15:58 Denver International Airport0 changesdirect
unitedUA1231 · UA197013:10 O'Hare International Airport
6h27
19:37 Denver International Airport1 change
unitedUA1285 · UA59413:25 O'Hare International Airport
5h54
19:19 Denver International Airport1 change
unitedUA2194 · UA528113:25 O'Hare International Airport
6h16
19:41 Denver International Airport1 change
alaska_airlinesAS587 · AS60214:00 O'Hare International Airport
10h50
00:50 Denver International Airport1 change
alaska_airlinesAS587 · AS697 · AS302114:00 O'Hare International Airport
16h51
06:51 Denver International Airport2 changes
alaska_airlinesAS587 · AS621 · AS302114:00 O'Hare International Airport
16h51
06:51 Denver International Airport2 changes
alaska_airlinesAS587 · AS621 · AS142914:00 O'Hare International Airport
12h06
02:06 Denver International Airport2 changes
alaska_airlinesAS587 · AS64214:00 O'Hare International Airport
16h59
06:59 Denver International Airport1 change
unitedUA4778 · UA546214:45 O'Hare International Airport
5h07
19:52 Denver International Airport1 change
unitedUA5642 · UA574214:45 O'Hare International Airport
6h14
20:59 Denver International Airport1 change
unitedUA5642 · UA545614:45 O'Hare International Airport
5h00
19:45 Denver International Airport1 change
unitedUA213114:47 O'Hare International Airport
2h48
17:35 Denver International Airport0 changesdirect
unitedUA2232 · UA528114:50 O'Hare International Airport
4h51
19:41 Denver International Airport1 change
unitedUA1304 · UA24815:15 O'Hare International Airport
6h39
21:54 Denver International Airport1 change
alaska_airlinesAS1470 · AS683 · AS64215:20 O'Hare International Airport
15h39
06:59 Denver International Airport2 changes
alaska_airlinesAS1470 · AS622 · AS64215:20 O'Hare International Airport
15h39
06:59 Denver International Airport2 changes
alaska_airlinesAS1470 · AS149215:20 O'Hare International Airport
27h14
18:34 Denver International Airport1 change
unitedUA4613 · UA262515:20 O'Hare International Airport
6h45
22:05 Denver International Airport1 change
alaska_airlinesAS1470 · AS302115:20 O'Hare International Airport
15h31
06:51 Denver International Airport1 change
alaska_airlinesAS1470 · AS142915:20 O'Hare International Airport
10h46
02:06 Denver International Airport1 change
american_airlinesAA283315:47 O'Hare International Airport
2h56
18:43 Denver International Airport0 changesdirect
unitedUA5234 · UA194216:23 O'Hare International Airport
6h57
23:20 Denver International Airport1 change
unitedUA4725 · UA146416:35 O'Hare International Airport
7h08
23:43 Denver International Airport1 change
unitedUA2483 · UA24116:35 O'Hare International Airport
6h34
23:09 Denver International Airport1 change
unitedUA3459 · UA209316:35 O'Hare International Airport
7h09
23:44 Denver International Airport1 change
unitedUA570 · UA158816:40 O'Hare International Airport
6h56
23:36 Denver International Airport1 change
unitedUA180316:40 O'Hare International Airport
2h50
19:30 Denver International Airport0 changesdirect
unitedUA2467 · UA213016:55 O'Hare International Airport
7h57
00:52 Denver International Airport1 change
unitedUA233 · UA244716:55 O'Hare International Airport
6h40
23:35 Denver International Airport1 change
unitedUA2414 · UA176616:58 O'Hare International Airport
6h41
23:39 Denver International Airport1 change
unitedUA2182 · UA194317:05 O'Hare International Airport
8h03
01:08 Denver International Airport1 change
unitedUA4600 · UA262517:05 O'Hare International Airport
5h00
22:05 Denver International Airport1 change
unitedUA215 · UA264417:05 O'Hare International Airport
6h33
23:38 Denver International Airport1 change
unitedUA2016 · UA265517:10 O'Hare International Airport
7h48
00:58 Denver International Airport1 change
unitedUA3635 · UA64918:45 O'Hare International Airport
7h44
02:29 Denver International Airport1 change
unitedUA5841 · UA100718:45 O'Hare International Airport
5h22
00:07 Denver International Airport1 change
unitedUA5728 · UA209318:45 O'Hare International Airport
4h59
23:44 Denver International Airport1 change
unitedUA3565 · UA202818:45 O'Hare International Airport
6h07
00:52 Denver International Airport1 change
unitedUA1484 · UA265518:47 O'Hare International Airport
6h11
00:58 Denver International Airport1 change
unitedUA4779 · UA146418:57 O'Hare International Airport
4h46
23:43 Denver International Airport1 change
unitedUA3470 · UA194218:59 O'Hare International Airport
4h21
23:20 Denver International Airport1 change
unitedUA209019:00 O'Hare International Airport
2h50
21:50 Denver International Airport0 changesdirect
unitedUA5930 · UA463419:00 O'Hare International Airport
6h25
01:25 Denver International Airport1 change
unitedUA76719:55 O'Hare International Airport
2h48
22:43 Denver International Airport0 changesdirect
unitedUA2690 · UA576719:55 O'Hare International Airport
6h40
02:35 Denver International Airport1 change
american_airlinesAA276219:57 O'Hare International Airport
2h54
22:51 Denver International Airport0 changesdirect
unitedUA5451 · UA64920:02 O'Hare International Airport
6h27
02:29 Denver International Airport1 change
alaska_airlinesAS325 · AS667 · AS149220:05 O'Hare International Airport
22h29
18:34 Denver International Airport2 changes
alaska_airlinesAS325 · AS1318 · AS64220:05 O'Hare International Airport
10h54
06:59 Denver International Airport2 changes
alaska_airlinesAS325 · AS134620:05 O'Hare International Airport
29h18
01:23 Denver International Airport1 change
alaska_airlinesAS325 · AS68420:05 O'Hare International Airport
21h30
17:35 Denver International Airport1 change
unitedUA2618 · UA69620:23 O'Hare International Airport
5h02
01:25 Denver International Airport1 change
unitedUA148520:40 O'Hare International Airport
2h50
23:30 Denver International Airport0 changesdirect
alaska_airlinesAS1447 · AS149220:54 O'Hare International Airport
21h40
18:34 Denver International Airport1 change
alaska_airlinesAS1447 · AS302120:54 O'Hare International Airport
9h57
06:51 Denver International Airport1 change
alaska_airlinesAS1447 · AS1392 · AS68420:54 O'Hare International Airport
20h41
17:35 Denver International Airport2 changes
alaska_airlinesAS1447 · AS336 · AS68220:54 O'Hare International Airport
22h33
19:27 Denver International Airport2 changes
alaska_airlinesAS1447 · AS142920:54 O'Hare International Airport
29h12
02:06 Denver International Airport1 change
unitedUA180121:55 O'Hare International Airport
2h50
00:45 Denver International Airport0 changesdirect
unitedUA2340 · UA133823:10 O'Hare International Airport
7h26
06:36 Denver International Airport1 change
Thursday 13 November
unitedUA181900:15 O'Hare International Airport
2h49
03:04 Denver International Airport0 changesdirect
unitedUA155502:00 O'Hare International Airport
2h49
04:49 Denver International Airport0 changesdirect
american_airlinesAA138702:29 O'Hare International Airport
2h53
05:22 Denver International Airport0 changesdirect
alaska_airlinesAS1466 · AS576 · AS134602:59 O'Hare International Airport
22h24
01:23 Denver International Airport2 changes
alaska_airlinesAS1466 · AS149202:59 O'Hare International Airport
15h35
18:34 Denver International Airport1 change
alaska_airlinesAS1466 · AS399 · AS134602:59 O'Hare International Airport
22h24
01:23 Denver International Airport2 changes
alaska_airlinesAS1466 · AS302102:59 O'Hare International Airport
27h52
06:51 Denver International Airport1 change
alaska_airlinesAS1466 · AS142902:59 O'Hare International Airport
23h07
02:06 Denver International Airport1 change
unitedUA229603:30 O'Hare International Airport
2h45
06:15 Denver International Airport0 changesdirect

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.

Thu
13 Nov
Fri
14 Nov
Sat
15 Nov
Sun
16 Nov
Mon
17 Nov
Tue
18 Nov
Wed
19 Nov
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22 Nov
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24 Nov
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25 Nov
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30 Nov
Mon
01 Dec
Tue
02 Dec
Wed
03 Dec

Airlines: United, American Airlines, Frontier Airlines, Sky West Airlines from Chicago, IL to Denver, COFind the best flights between Chicago, IL to Denver, CO with Omio's travel partners United, American Airlines, Frontier Airlines, Sky West Airlines from £24. We can find you the best deals, schedules and tickets when comparing and booking the best trip.

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 35m
Cheapest Price
£63
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.
Entertaiment on board

United

About
United Airlines is one of the USA’s leading carriers, operating both domestic and international routes. For your next trip, you can choose from Economy, Premium Economy, and Business Class fares.
Luggage & cancellation policy
Average Duration
2h 49m
Cheapest Price
£101
United frequency
15 a day
Luggage included
One carry-on bag (9 x 14 x 22 inches) and one personal item (9 x 10 x 17 inches)
Additional luggage
Checked baggage fees vary by route and fare class. Most economy tickets allow purchase of up to 2 checked bags
Cancellation Policy
Basic Economy tickets are non-refundable, other fares allow changes/cancellations with fee depending on fare type and elite status
Pregnant on board
Passengers can fly through the end of their 36th week for single pregnancies, 32nd week for multiple pregnancies. Medical certificate required within 4 weeks of flight
Unaccompagned minor
Children ages 5-14 can travel as unaccompanied minors with mandatory service. Ages 15-17 optional service available
Amenities on board the airplane
Wifi
USB plugs
Accessibility
United provides assistance for passengers with disabilities, including wheelchair assistance and support for passengers with visual or hearing impairments
Pets
Small dogs and cats in cabin, service animals allowed. Pets must be in approved carriers and booked in advance
Entertaiment on board

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 48m
Cheapest Price
£31
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.

Sky West Airlines

About
SkyWest Airlines is a major North American regional airline headquartered in St. George, Utah. It operates flights for larger carriers such as Alaska Airlines (as Alaska SkyWest), American Airlines (as American Eagle), Delta Air Lines (as Delta Connection), and United Airlines (as United Express). SkyWest is the largest regional airline in North America by fleet size, passengers carried, and destinations served. The airline connects passengers to over 250 destinations across the United States, Canada, and Mexico, primarily linking smaller airports to major airline hubs. SkyWest's fleet consists of regional jets, including the Bombardier CRJ series and Embraer 175 aircraft.
Luggage & cancellation policy
Luggage included
One carry-on bag and one personal item are allowed for free.
Additional luggage
Additional luggage can be purchased, and fees apply for excess, oversized, or overweight baggage.
Cancellation Policy
If canceled within 24 hours of purchase, a full refund is possible, provided the departure is at least 7 days away; after 24 hours, fees range from $100 to $500.
Refund
If SkyWest Airlines cancels a flight, passengers are eligible for a full refund.
Pregnant on board
Being pregnant on board is allowed, but specific policies may depend on the partner airline.
Unaccompagned minor
Children aged 5-14 can travel alone using the unaccompanied minor service, which includes airport escort and supervision.
Amenities on board the airplane
Accessibility
SkyWest Airlines complies with all provisions of the Air Carrier Access Act and accommodates customers with special needs.
Pets
Small pets like cats and dogs are allowed in the cabin for a fee, with restrictions on pet and carrier size.

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 £43 when you book in advance. The average flight ticket price for Chicago, IL to Denver, CO is £194; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Chicago, IL to Denver, CO flight travel time is 2 h 34 min   for the 915 mile long trip, but the duration can vary if you travel on weekends and holidays.
The earliest flight from Chicago, IL to Denver, CO leaves at 00: 06. Plan your trip with the Journey Planner   from Omio.
The latest flight from Chicago, IL to Denver, CO leaves at 23: 57.
There are 53 flights a day from Chicago, IL to Denver, CO which require at least one change with United, American Airlines or Frontier Airlines. Schedules can vary on holidays or weekends with fewer flights.
For the journey from Chicago, IL to Denver, CO you can take a flight with United, American Airlines or Frontier Airlines. Be sure to check out all possible airlines that offer services from Chicago, IL to Denver, CO on Omio to compare what amenities they may have.
The cheapest month for a flight from Chicago, IL to Denver, CO is February.
You have options as you can travel from Chicago, IL to Denver, CO 3 different ways: train, coach or flight.

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

More options for your journey from Chicago, IL to Denver, CO

Here are some other resources that might have the information you need

Chicago, IL to Denver, CO train
Compare all journeys between Chicago, IL and Denver, CO
More information on flights to Chicago, IL
More information on flights to Denver, CO
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