ORD - DEN

Find cheap flights from Chicago to Denver

1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Denver, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals from Chicago to Denver (ORD-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chicago to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Chicago to Denver

KAYAK's recommended return flight deals from the most popular airlines that fly from Chicago to Denver.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
American Airlines Logo
ORD-DEN
2h 34mdirect
American Airlines Logo
DEN-ORD
2h 32mdirect
American Airlines
Find Deal
Qatar Airways Logo
ORD-DEN
2h 49mdirect
Qatar Airways Logo
DEN-ORD
2h 32mdirect
Qatar Airways
Find Deal
Air Canada Logo
ORD-DEN
2h 43mdirect
Air Canada Logo
DEN-ORD
2h 33mdirect
Air Canada
Find Deal
Japan Airlines Logo
ORD-DEN
2h 44mdirect
Japan Airlines Logo
DEN-ORD
2h 32mdirect
Japan Airlines
Find Deal
Aer Lingus Logo
ORD-DEN
2h 34mdirect
Aer Lingus Logo
DEN-ORD
2h 32mdirect
Aer Lingus
Find Deal
Austrian Airlines Logo
ORD-DEN
2h 42mdirect
Austrian Airlines Logo
DEN-ORD
2h 35mdirect
Austrian Airlines
Find Deal
Emirates Logo
ORD-DEN
2h 51mdirect
Emirates Logo
DEN-ORD
2h 40mdirect
Emirates
Find Deal
Copa Airlines Logo
ORD-DEN
2h 43mdirect
Copa Airlines Logo
DEN-ORD
2h 41mdirect
Copa Airlines
Find Deal
SWISS Logo
ORD-DEN
2h 41mdirect
SWISS Logo
DEN-ORD
2h 40mdirect
United Airlines Logo
ORD-DEN
2h 50mdirect
United Airlines Logo
DEN-ORD
2h 43mdirect
United Airlines
Find Deal
Frontier Logo
ORD-DEN
2h 50mdirect
Frontier Logo
DEN-ORD
2h 45mdirect
Frontier
Find Deal
Cathay Pacific Logo
ORD-DEN
2h 49mdirect
Cathay Pacific Logo
DEN-ORD
2h 32mdirect
Cathay Pacific
Find Deal
Turkish Airlines Logo
ORD-DEN
2h 42mdirect
Turkish Airlines Logo
DEN-ORD
2h 33mdirect
Turkish Airlines
Find Deal
Southwest Logo
ORD-DEN
2h 40mdirect
Southwest Logo
DEN-ORD
2h 30mdirect
Southwest
Find Deal
Finnair Logo
ORD-DEN
3h 02mdirect
Finnair Logo
DEN-ORD
2h 33mdirect
Finnair
Find Deal
Royal Jordanian Logo
ORD-DEN
2h 44mdirect
Royal Jordanian Logo
DEN-ORD
2h 31mdirect
Royal Jordanian
Find Deal
Iberia Logo
ORD-DEN
2h 34mdirect
Iberia Logo
DEN-ORD
2h 32mdirect
Iberia
Find Deal
Brussels Airlines Logo
ORD-DEN
2h 41mdirect
Brussels Airlines Logo
DEN-ORD
2h 40mdirect
Brussels Airlines
Find Deal
Lufthansa Logo
ORD-DEN
2h 41mdirect
Lufthansa Logo
DEN-ORD
2h 40mdirect
Lufthansa
Find Deal
British Airways Logo
ORD-DEN
2h 43mdirect
British Airways Logo
DEN-ORD
2h 34mdirect
British Airways
Find Deal
Gulf Air Logo
ORD-DEN
2h 44mdirect
Gulf Air Logo
DEN-ORD
2h 32mdirect
Gulf Air
Find Deal

Expert advice for your flight from Chicago to Denver

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

American's Main Cabin Extra offers early boarding and complimentary drinks, enhancing travel comfort.


Download the American Airlines app for access to inflight entertainment on personal devices.

United Airlines

United's Economy Plus offers up to six inches more legroom, enhancing comfort on short flights.


Consider Priority Boarding to ensure overhead bin space for your carry-on.

Frontier

Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget travelers.


Choose Premium Bundle for priority boarding and extra legroom at a minimal cost increase.

Read more about Frontierby Stefanie Waldek
Airports
ORD

O'Hare's security lines can exceed 30 minutes during peak times. Arrive early to avoid delays, especially for morning and evening flights.

Read more about ORDby Stefanie Waldek
DEN

Take the RTD A line train from DEN to downtown Denver in about 40 minutes for a cost-effective travel option.

Read more about DENby Harriet Baskas
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and DEN

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Frontier and ORD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more

KAYAK's insights & trends for Chicago to Denver flights

Get data-powered insights and trends into flights from Chicago to Denver to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago to Denver?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Denver clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Chicago to Denver, look for departures on Mondays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Denver, Monday is the cheapest day to fly and Tuesday is the most expensive.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago O'Hare Intl Airport to Denver is September, where tickets cost £120 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £181 and £174 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Chicago O'Hare Intl Airport to Denver, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know - Cheap tickets from Chicago to Denver

Low season

January

High season

July
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (13% more expensive on average)

When to book flights from Chicago to Denver

Are your dates flexible? Find out the best times to travel from Chicago to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Denver flights

  • Can I travel from Chicago O’Hare Airport (ORD) to DEN with a pet?

    Chicago O’Hare Airport (ORD) is pet friendly and ensures that you and your furry friend have the best experience. There are pet relief areas in the departure and arrival airports with cleaning materials. ORD, however, requires you to leash your pet. You can find the pet relief areas inside security in Terminal 3 Rotunda and outside security. You can contact your airline to inquire about their policies regarding traveling with an animal.

  • Where can I eat in ORD?

    You can find various restaurants in the airport to grab a quick meal before your flight. While you can find most restaurants past security, you can find a few before security. To make your traveling experience more interesting, the airport has ensured that you get different local dining options.

  • Where can I stay in DEN?

    You can stay at the Westin Denver International Airport Hotel, situated just a few steps from the main terminal. It is convenient and offers respite to travelers. The hotel provides shuttle services from the airport to the hotel. You can also stay in one of the many hotels within 10 miles of the airport, such as Aloft Denver International Airport, Avid Hotel Denver Airport, Baymont Inn & Suites, and Clarion Hotel Denver Central.

  • Is DEN accessible to people with reduced mobility?

    The airport has partnered with the Hidden Disabilities Sunflower organization, which provides people with disabilities with a green lanyard with sunflowers to signal that they may need special assistance. The parking lots at the airport are accessible and fitted with elevators and ramps.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Denver?

    American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Chicago to Denver flight route.

  • Which aircraft models fly most regularly from Chicago to Denver?

    The Airbus A321neo is the aircraft model that flies most regularly on the Chicago to Denver flight route.

  • Which airline alliances offer flights from Chicago to Denver?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Denver, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to Denver?

    There are direct flights from Chicago to Denver on a daily basis.

  • How does KAYAK find such low prices on flights from Chicago to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Chicago is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Denver with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Denver

  • The Chicago O’Hare Airport can be accessed using a myriad of transit options. It is easy to get to the airport using the Airport Transit options, taxis, buses, car rental, or train. If you are looking for a fast and convenient way to the airport, we recommend using a taxi.
  • Chicago O’Hare Airport (ORD) is friendly to nursing mothers, offering them a lovely nursing lounge. The rooms are finished and lovely, with a private chair and a sink area giving a personal space for mothers to breastfeed and breast pump. You can find the nursing area in Terminal 3 Rotunda.
  • You can park in the ORD airport-provided parking spaces at a fee for short-term or long-term. You do not have to worry about the safety of your vehicle because the airport ensures security and safety. The Economy Lot G is the cheapest option if you are parking long-term.
  • There are many direct flights serving this route. All the following airlines operate direct flights along this route: American Airlines, Brussels Airlines, Cathay Pacific Finnair, Copa Airlines, Royal Jordanian, Austrian Airlines, Air Canada, Aer Lingus, Qatar Airways, British Airways, Gulf Air, Iberia, and Japan Airlines. You can find an airline that is within your budget and needs.
  • Denver International Airport (DEN) provides a unique and elegant space to improve your traveling experience. Enjoy the amenities and services by the airport before leaving. You can access free Wi-Fi, charging stations, nursing rooms, and an interfaith chapel.
See more tips

Prefer to fly direct from Chicago to Denver?

Find which airlines fly direct from Chicago O'Hare Intl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Denver Intl

Monday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Thursday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Friday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Saturday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Sunday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

See more direct flights

Direct returns

Denver Intl to Chicago O'Hare Intl

Monday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Thursday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Friday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Saturday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Sunday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

See more direct flights
See more direct flights

Top airline flying from Chicago to Denver

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
5.9
FrontierOverall score based on 3283 reviews
4.8Food
5.6Comfort
6.8Crew
6.2Boarding
4.6Entertainment
Airline reviews

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

8.0 ExcellentGreg, Apr 2025MCO - DEN
Read more Frontier reviews

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Stuck in Phoenix for two days, not even a hotel voucher offered.

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Flight got delayed for 3.5 hours, and for the first hour after the departure time there was no update from the gate folks...

Everything you need to know for your flight from Chicago to Denver

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.