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

Mon, Feb 02
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Journey information

Overview: Denver, CO to Chicago, IL flight

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Icon of flight

Flights from Denver, CO to Chicago, IL depart on average 33 times per day, taking around 3h 3m. Cheap flight tickets for this journey start at $152 (€120) 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 916 miles (1475 km) distance in 2h 26m. August 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
916 miles (1475 km)
Average flight duration
3h 3m
Cheapest ticket price
$152 (€120)
Flights per day
33
Direct flights
9
Fastest flight
2h 26m
Cheapest month to travel
August
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

Travel Information

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

Omio recommends booking the train as it is the most popular option from Denver, CO to Chicago, IL among Omio's users. If you are prioritising price take the flight with prices starting from €120. For those with little time consider booking a flight which can get you there in 3h 3m. 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 flight costs an average of €120, and a bus costs an average of €250.

Distance: 916 miles (1475 km)

Compare flight with

Flight
Most popular
Train
Bus

€120

Average price

Cheapest

€247

Average price

€272

Average price

6h 3m

Average total duration

Fastest

3h 3m

Onboard

+

3h 0m

Additional time*

19h 10m

Average total duration

18h 40m

Onboard

+

30m

Additional time*

27h 12m

Average total duration

26h 42m

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

Denver, CO to Chicago, IL flight times

The table below shows live departures for Denver, CO to Chicago, IL flights for today, Sunday, February 1. You can also manually refresh the results below to see updated flight journeys.

Last updated at 6:39 PM
ProviderDepartsDurationArrivesTransfers
Tickets
unitedUA1963 · UA2756:55 PM Denver International Airport
5h47
12:42 AM O'Hare International Airport1 transfer
american_airlinesAA28337:34 PM Denver International Airport
2h36
10:10 PM O'Hare International Airport0 transfersDirect
unitedUA631 · UA5619 · UA17548:25 PM Denver International Airport
10h33
6:58 AM O'Hare International Airport2 transfers
frontier_airlinesF94920 · F930438:28 PM Denver International Airport
20h13
4:41 PM O'Hare International Airport1 transfer
unitedUA6178:30 PM Denver International Airport
2h34
11:04 PM O'Hare International Airport0 transfersDirect
unitedUA586 · UA54438:31 PM Denver International Airport
5h43
2:14 AM O'Hare International Airport1 transfer
american_airlinesAA3838:40 PM Denver International Airport
2h36
11:16 PM O'Hare International Airport0 transfersDirect
unitedUA2327 · UA14768:40 PM Denver International Airport
5h45
2:25 AM O'Hare International Airport1 transfer
frontier_airlinesF93600 · F933978:50 PM Denver International Airport
7h56
4:46 AM O'Hare International Airport1 transfer
unitedUA1315 · UA45598:53 PM Denver International Airport
5h30
2:23 AM O'Hare International Airport1 transfer
frontier_airlinesF93230 · F931369:26 PM Denver International Airport
8h03
5:29 AM O'Hare International Airport1 transfer
unitedUA102310:15 PM Denver International Airport
2h31
12:46 AM O'Hare International Airport0 transfersDirect
unitedUA1805 · UA151710:35 PM Denver International Airport
5h12
3:47 AM O'Hare International Airport1 transfer
unitedUA67511:15 PM Denver International Airport
2h36
1:51 AM O'Hare International Airport0 transfersDirect
american_airlinesAA283211:30 PM Denver International Airport
2h40
2:10 AM O'Hare International Airport0 transfersDirect
frontier_airlinesF91734 · F9304312:01 AM Denver International Airport
16h40
4:41 PM O'Hare International Airport1 transfer
unitedUA141112:42 AM Denver International Airport
2h33
3:15 AM O'Hare International Airport0 transfersDirect
unitedUA3773:25 AM Denver International Airport
2h34
5:59 AM O'Hare International Airport0 transfersDirect
unitedUA2342 · UA21023:53 AM Denver International Airport
7h13
11:06 AM O'Hare International Airport1 transfer

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 Denver, CO to Chicago, IL?

The best time to book your flight from Denver, CO to Chicago, IL is 42 days before departure. See how prices for flights change on the Denver, CO to Chicago, IL route.
Prices are for one-way tickets for one passenger from Denver, CO to Chicago, IL 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 Denver, CO to Chicago, IL.

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

Compare bus, train, 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.

Mon
Feb 02
Tue
Feb 03
Wed
Feb 04
Thu
Feb 05
Fri
Feb 06
Sat
Feb 07
Sun
Feb 08

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

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

Why book with Omio vs United?

  • Compare with other providers: On Omio, you can not only buy tickets for United, but also compare tickets for the likes of American Airlines or Frontier Airlines to find the best option for your trip from Denver, CO to Chicago, IL.
  • 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 United with all available travel options, which are bus, train and flight to ensure you get the best deal for traveling from Denver, CO to Chicago, IL.

Why book with Omio over Kayak, Skyscanner or Trip?

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

Airlines: United, American Airlines, Frontier Airlines from Denver, CO to Chicago, ILFind the best flights between Denver, CO to Chicago, IL with Omio's travel partners United, American Airlines, Frontier Airlines from $152 (€120). 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 26m
Cheapest Price
$152 (€120)
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 36m
Cheapest Price
$99 (€78)
American Airlines frequency
3 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 36m
Cheapest Price
$34 (€27)
Frontier Airlines frequency
10 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: Denver, CO to Chicago, IL Flight

Find answers to the most common questions about traveling from Denver, CO to Chicago, IL 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 Chicago, IL, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from Denver, CO to Chicago, IL can start from as little as $152 (€120) when you book in advance. The average flight ticket price for Denver, CO to Chicago, IL is $152 (€120) ; 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 Denver, CO to Chicago, IL is 2h 26m to travel the 916 miles (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 Denver, CO to Chicago, IL leaves at 12:01 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Denver, CO to Chicago, IL leaves at 11:58 PM.
Yes, there are 9 direct flights a day from Denver, CO to Chicago, IL with United, American Airlines, Frontier Airlines. Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from Denver, CO to Chicago, IL, you can count on United, American Airlines, Frontier Airlines for the best way to get you to Chicago, IL. You can also check all possible airlines who offer a service between Denver, CO and Chicago, IL and compare the amenities they offer before buying a plane ticket.
Flights from Denver, CO to Chicago, IL generally leave from Denver International Airport and arrive in O'Hare International Airport.Denver International Airport is 11 miles (18 km) away from Denver, CO city centre and O'Hare International Airport is 1 miles (3 km) from Chicago, IL city centre.
The cheapest month for a flight from Denver, CO to Chicago, IL is August.
It's helpful to compare your options as there are 3 ways to travel between Denver, CO and Chicago, IL including taking a bus, train, and flight.
Since neither Denver, CO nor Chicago, IL 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 Denver, CO and Chicago, IL all year round.
The best events to attend in Chicago, IL include:
  • Chicago Air and Water Show, an exhilarating display of military and civilian aircraft performing daring maneuvers over Lake Michigan
  • Lollapalooza, a massive music festival featuring top artists across multiple genres in Grant Park
  • Chicago Gourmet, a premier culinary event celebrating the city's vibrant food scene with tastings, cooking demonstrations, and wine pairings.
The best holidays to experience in Chicago, IL include:
  • Memorial Day, the unofficial start of summer with vibrant outdoor activities and events
  • Independence Day, spectacular fireworks and festive celebrations throughout the city
  • Labor Day, a lively atmosphere with various festivals and pleasant weather.
The best season to visit Chicago, IL is Spring or Summer. The best weather to explore Chicago, IL is during May-September.
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

Popular airports from Denver, CO to Chicago, IL

Denver
Chicago
The major airport for departures in Denver is Denver International Airport. Find all the information you need to know about services, amenities and connections at Denver International Airport for your trip from Denver to Chicago.
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
ticketOfficeHours
Distance to city center
18 km
carConnection
Car connection
Peña Blvd, Exit 284
Wifi
Wifi
  • Free Wi-Fi available throughout the airport.
Shopping
Shopping
  • Shops located in Jeppesen terminal and concourses, including Duty-Free and local brands.
Parking
Parking
  • Parking available, approximately 4.7€ ($5) per hour, parkade adjacent to terminal.
Dining
Dining
  • Various restaurants in Jeppesen terminal and concourses, including American and intertiol cuisine.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Elevators, ramps
WC
WC
  • Available throughout the airport.
Hotel
Hotel
  • Westin Hotel connected to the terminal.
Shower
Shower
  • Showers available at the Westin Hotel, approximately $20.
Lounge
Lounge
  • Multiple lounges available, including United Club and Delta Sky Club.
Lost and Found Office
Lost and Found Office
  • Lost and Found located in Jeppesen terminal, Level 5.
Car Rental
Car Rental
  • Car rental services available on airport property, shuttle service to rental car lots.
Public transit options for Denver International Airport
  • A Line train, Denver Airport Station, 37 minutes to Union Station

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