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

Wed 11 Feb
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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 53 times per day, taking around 3h 13m. Cheap flight tickets for this journey start at £24 if you book in advance.

There are 10 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 41m. 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 13m
Cheapest ticket price
£24
Flights per day
53
Direct flights
10
Fastest flight
2h 41m
Cheapest month to travel
June
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 11 Feb

Cheapest price

£49

Average price

£133

Fastest journey

2 h 35 m

Average duration

2 h 45 m

Flights per day

5

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 £133 if you buy it on the day, but you can find cheap flight tickets today for only £49.

Fast flights

Of the 5 flights that leave Chicago, IL for Denver, CO every day 5 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 45 m but if you time it right, some flights will get you there in just 2 h 35 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 Airlines
12:202h49
Chicago, IL
15:09Denver, CO
£491One-way
0 changes
American Airlines
16:502h35
Chicago, IL
19:25Denver, CO
£621One-way
0 changes
Frontier Airlines
12:002h53
Chicago, IL
14:53Denver, CO
£1561One-way
0 changes
Frontier Airlines
16:2821h31
Chicago, IL
13:59Denver, CO
£1851One-way
0 changes
American Airlines
20:022h41
Chicago, IL
22:43Denver, CO
£2121One-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 £51. For those with little time consider booking a flight which can get you there in 3h 13m. 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 £51, and a train costs an average of £73.

Distance: 1475 km

Compare flight with

Flight
Most popular
Train
Coach

£178

Average Price

£181

Average Price

£115

Average Price

Cheapest

6h 13m

Average total duration

Fastest

3h 13m

Onboard

+

3h 0m

Additional time*

19h 17m

Average total duration

18h 47m

Onboard

+

30m

Additional time*

22h 42m

Average total duration

22h 12m

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, Tuesday 10 February. You can also manually refresh the results below to see updated flight journeys.

Last updated at 17:47
ProviderDepartsDurationArrivesChanges
Tickets
frontier_airlinesF91596 · F9359917:51 O'Hare International Airport
10h50
04:41 Denver International Airport1 change
american_airlinesAA283218:39 O'Hare International Airport
2h50
21:29 Denver International Airport0 changesdirect
unitedUA1853 · UA194318:45 O'Hare International Airport
6h36
01:21 Denver International Airport1 change
unitedUA2290 · UA160218:45 O'Hare International Airport
7h45
02:30 Denver International Airport1 change
unitedUA2290 · UA265518:45 O'Hare International Airport
6h21
01:06 Denver International Airport1 change
unitedUA5599 · UA77818:45 O'Hare International Airport
6h17
01:02 Denver International Airport1 change
unitedUA5558 · UA172418:45 O'Hare International Airport
5h00
23:45 Denver International Airport1 change
unitedUA561 · UA212318:45 O'Hare International Airport
6h36
01:21 Denver International Airport1 change
unitedUA492 · UA64618:45 O'Hare International Airport
4h45
23:30 Denver International Airport1 change
unitedUA261618:53 O'Hare International Airport
2h58
21:51 Denver International Airport0 changesdirect
unitedUA3678 · UA48618:58 O'Hare International Airport
5h58
00:56 Denver International Airport1 change
unitedUA467 · UA227218:58 O'Hare International Airport
6h14
01:12 Denver International Airport1 change
unitedUA3451 · UA37719:00 O'Hare International Airport
6h08
01:08 Denver International Airport1 change
unitedUA3502 · UA122919:00 O'Hare International Airport
5h53
00:53 Denver International Airport1 change
american_airlinesAA244019:30 O'Hare International Airport
2h49
22:19 Denver International Airport0 changesdirect
unitedUA1657 · UA37719:55 O'Hare International Airport
5h13
01:08 Denver International Airport1 change
unitedUA117619:55 O'Hare International Airport
2h57
22:52 Denver International Airport0 changesdirect
alaska_airlinesAS325 · AS1318 · AS68220:06 O'Hare International Airport
23h32
19:38 Denver International Airport2 changes
alaska_airlinesAS325 · AS2113 · AS68220:06 O'Hare International Airport
23h32
19:38 Denver International Airport2 changes
alaska_airlinesAS325 · AS3041 · AS68220:06 O'Hare International Airport
23h32
19:38 Denver International Airport2 changes
alaska_airlinesAS325 · AS1314 · AS68220:06 O'Hare International Airport
23h32
19:38 Denver International Airport2 changes
alaska_airlinesAS325 · AS1318 · AS60220:06 O'Hare International Airport
10h29
06:35 Denver International Airport2 changes
alaska_airlinesAS325 · AS667 · AS149220:06 O'Hare International Airport
22h32
18:38 Denver International Airport2 changes
unitedUA2298 · UA227220:17 O'Hare International Airport
4h55
01:12 Denver International Airport1 change
unitedUA234720:36 O'Hare International Airport
2h58
23:34 Denver International Airport0 changesdirect
alaska_airlinesAS407 · AS60221:35 O'Hare International Airport
9h00
06:35 Denver International Airport1 change
unitedUA5076 · UA510321:35 O'Hare International Airport
4h50
02:25 Denver International Airport1 change
alaska_airlinesAS407 · AS68221:35 O'Hare International Airport
22h03
19:38 Denver International Airport1 change
unitedUA5085 · UA510121:35 O'Hare International Airport
5h05
02:40 Denver International Airport1 change
alaska_airlinesAS1447 · AS149221:44 O'Hare International Airport
20h54
18:38 Denver International Airport1 change
alaska_airlinesAS1447 · AS574 · AS68221:44 O'Hare International Airport
21h54
19:38 Denver International Airport2 changes
alaska_airlinesAS1447 · AS304621:44 O'Hare International Airport
9h14
06:58 Denver International Airport1 change
unitedUA264921:59 O'Hare International Airport
2h58
00:57 Denver International Airport0 changesdirect
Wednesday 11 February
alaska_airlinesAS409 · AS68200:06 O'Hare International Airport
19h32
19:38 Denver International Airport1 change
unitedUA102700:15 O'Hare International Airport
2h58
03:13 Denver International Airport0 changesdirect
unitedUA76702:02 O'Hare International Airport
2h57
04:59 Denver International Airport0 changesdirect
envoy_airAA354003:15 O'Hare International Airport
3h01
06:16 Denver International Airport0 changesdirect
frontier_airlines12:00 Chicago, IL
2h53
14:53 Denver, CO0 changesdirect
frontier_airlines16:28 Chicago, IL
21h31
13:59 Denver, CO0 changesdirect
american_airlines16:50 Chicago, IL
2h35
19:25 Denver, CO0 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.

Wed
11 Feb
Thu
12 Feb
Fri
13 Feb
Sat
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16 Feb
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Wed
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28 Feb
Sun
01 Mar
Mon
02 Mar
Tue
03 Mar

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.

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 49m
Cheapest Price
£100
United frequency
15 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 35m
Cheapest Price
£62
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.

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
Seat reservation
Toilets
Accessibility
SkyWest Airlines complies with all provisions of the Air Carrier Access Act and accommodates customers with special needs.
Bikes
Bicycles can be checked in but may incur additional fees and must be properly packed.
Pets
Small pets like cats and dogs are allowed in the cabin for a fee, with restrictions on pet and carrier size.

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.

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 £24 when you book in advance. The average flight ticket price for Chicago, IL to Denver, CO is £178; 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 41m 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 10 direct flights a day from Chicago, IL to Denver, CO with United. 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 United, American Airlines, Frontier Airlines, Sky West 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

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
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More information on flights to Denver, CO
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