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O'Hare Intl

$64+ Cheap flights from Denver (DEN) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ORD
Oct 30 — Nov 61
Thu 10/30
Thu 11/6
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Denver Intl to Chicago O'Hare Intl are usually found in February or October, booked 79 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Denver to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$118
(Cheapflightsfares)

One-way from

$64
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$221

Good round-trip deal

$234 or less

Good one-way deal

$121 or less
Provider with most accurate pricing for Denver Intl-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Chicago O'Hare Intl flights.
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From Denver Intl to Chicago O'Hare Intl
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One-way flight from Denver Intl to Chicago O'Hare Intl
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Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Denver Intl to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Denver Intl to Chicago O'Hare Intl.
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Find flight deals from Denver to O'Hare Intl

Cheapest flights from Denver to O'Hare Intl
Explore the most affordable flight options available from Denver to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:00 amDEN - ORD
Nonstop2h 36mFrontier
Sun 10/266:50 amORD - DEN
Nonstop2h 41mFrontier
Deal found 9/28$118
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:45 pmDEN - ORD
Nonstop2h 25mFrontier
Fri 12/57:39 pmORD - DEN
Nonstop2h 59mFrontier
Deal found 9/28$119
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/512:59 amDEN - ORD
1 stop8h 36mFrontier
Sun 11/96:00 amORD - DEN
Nonstop2h 41mFrontier
Deal found 9/28$120
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:10 pmDEN - ORD
1 stop23h 04mFrontier
Mon 10/276:50 amORD - DEN
Nonstop2h 41mFrontier
Deal found 9/28$121
This Cheapflightsfares deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:22 pmDEN - ORD
Nonstop2h 31mFrontier
Fri 10/249:54 pmORD - DEN
1 stop7h 05mFrontier
Deal found 9/29$122
This CheapOair deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:22 pmDEN - ORD
Nonstop2h 31mFrontier
Sat 11/18:00 amORD - DEN
1 stop16h 16mFrontier
Deal found 9/28$123
This Booking.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:10 pmDEN - ORD
1 stop27h 16mFrontier
Wed 10/227:15 amORD - DEN
Nonstop2h 49mFrontier
Deal found 9/28$124
This Cheapflightsfares deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:19 pmDEN - ORD
Nonstop2h 40mFrontier
Sun 10/265:50 amORD - DEN
1 stop20h 01mFrontier
Deal found 9/29$125
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:59 amDEN - ORD
1 stop9h 15mFrontier
Sat 11/17:15 amORD - DEN
Nonstop2h 49mFrontier
Deal found 9/28$126
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:10 pmDEN - ORD
1 stop27h 16mFrontier
Sat 11/17:15 amORD - DEN
Nonstop2h 49mFrontier
Deal found 9/28$127
This CheapOair deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:59 pmDEN - ORD
Nonstop2h 30mFrontier
Sun 11/21:36 pmORD - DEN
1 stop19h 00mFrontier
Deal found 9/28$128
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:59 amDEN - ORD
1 stop9h 15mFrontier
Tue 11/46:05 pmORD - DEN
Nonstop2h 54mFrontier
Deal found 9/28$129

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 30, 2025.
Use the filters below to find and compare flights from Denver to Chicago O'Hare Intl Airport that are best for you.

Fly from

Denver

Fly to

O'Hare Intl

Route

Depart

Return

Price

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 12/18

6:00 am-9:44 am

Nonstop2h 44m

Chicago O'Hare Intl

Tue 12/23

9:40 pm-11:38 pm

Nonstop2h 58m

$165

DenverChicago

DEN - ORD

DENORD

Denver Intl

Tue 10/28

2:55 pm-9:30 pm

1 stop5h 35m

Chicago O'Hare Intl

Tue 11/4

2:15 pm-9:35 pm

1 stop8h 20m

$167

DenverChicago

DEN - ORD

DENORD

Denver Intl

Sat 10/25

9:35 am-1:05 pm

Nonstop2h 30m

Chicago O'Hare Intl

Mon 10/27

6:55 pm-8:55 pm

Nonstop3h 00m

$172

DenverChicago

DEN - ORD

DENORD

Denver Intl

Tue 11/11

5:30 am-1:30 pm

1 stop7h 00m

Chicago O'Hare Intl

Sat 11/15

2:15 pm-7:30 pm

1 stop6h 15m

$184

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 10/22

8:00 am-4:25 pm

1 stop7h 25m

Chicago O'Hare Intl

Sat 10/25

12:40 pm-9:05 pm

2 stops9h 25m

$189

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 10/29

6:00 am-3:20 pm

2 stops8h 20m

Chicago O'Hare Intl

Sat 11/1

7:30 am-1:55 pm

1 stop7h 25m

$191

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 12/18

8:26 pm-11:59 pm

Nonstop2h 33m

Chicago O'Hare Intl

Sat 1/3

9:40 pm-11:38 pm

Nonstop2h 58m

$195

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 12/4

5:30 am-1:30 pm

1 stop7h 00m

Chicago O'Hare Intl

Sun 12/7

1:45 pm-9:35 pm

1 stop8h 50m

$216

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 12/24

8:26 pm-11:59 pm

Nonstop2h 33m

$69

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 11/20

8:45 pm-12:10 am

Nonstop2h 25m

$71

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

Showing 1-10 of 18 results
1
2

Compare providers for flights from Denver to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to O'Hare Intl in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Denver to Chicago O'Hare Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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 original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Chicago O'Hare Intl Airport trip
Airlines
Frontier

Frontier offers extra comfort seats for a fee, with 32” or 35” seat separation.


Early morning flights have a better chance of being on time, reducing delays.

Read more about Frontierby Marisa Garcia
United Airlines

United's Economy Plus offers extra legroom seats towards the front of the economy cabin.


United's Polaris Lounges offer showers, napping areas, and dining for premium passengers.

Read more about United Airlinesby Harriet Baskas
Southwest

Southwest offers free snacks and non-alcoholic drinks, enhancing the short flight experience.


Enjoy free messaging and in-flight entertainment streamed to your device on Southwest flights.

Read more about Southwestby Marisa Garcia
Airports
DEN

For a quick departure, use the A Line train to reach DEN from Union Station in 37 minutes, avoiding traffic hassles.

Read more about DENby Emily Zemler
ORD

To reach downtown Chicago quickly, take the 'L' train from ORD, avoiding potential traffic delays with taxis or rideshares.

Read more about ORDby Ramsey Qubein
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

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, USA TODAY, 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
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Denver to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to O'Hare Intl. Price data was last updated on September 26, 2025.

To ensure you get the cheapest price possible for a flight from Denver to Chicago O'Hare Intl Airport, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Denver to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Denver to Chicago O'Hare Intl Airport (average of $245). Flying from Denver to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to ORD?

Find hourly flight availability from Denver to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Denver to Chicago O'Hare Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 70% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to O'Hare Intl. Price data was last updated on September 28, 2025.

Travelers seeking maximum savings on their Denver to Chicago O'Hare Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated September 30, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Denver to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,931 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,157 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Denver to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Chicago O'Hare Intl?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Chicago O'Hare Intl. On average, Denver Intl has 48 outbound flights to Chicago O'Hare Intl per day from 4 airlines. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How long is the flight from Denver to Chicago O'Hare Intl Airport?

    A quick flight from Denver to Chicago O'Hare Intl Airport can take about 2h 44m. United Airlines provides one of the quickest options available for as low as $165. Denver and Chicago O'Hare Intl Airport are separated by a distance of 886 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Denver to Chicago O'Hare Intl Airport round-trip?

    Frontier, at $62, was found to be the cheapest airline from Denver to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Southwest and American Airlines. Frontier is 73% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Denver to Chicago O'Hare Intl Airport?

    Consider Japan Airlines (85%), Cathay Pacific (85%) or Turkish Airlines (85%) when booking your flight. These represent the most reliable airlines when flying from Denver to Chicago O'Hare Intl Airport.

  • What are the cheapest flights from Denver to Chicago O'Hare Intl Airport?

    Looking for the cheapest flight from Denver to Chicago O'Hare Intl Airport? While on average our users pay $857, our data indicates the cheapest price to be $66. The most popular route (Denver Intl - Chicago O'Hare Intl), is priced around $112.

  • Can I find deals for flights from Denver to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Denver to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to O'Hare Intl.

  • Can I find deals for business class flights from Denver to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Denver to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Denver to Chicago O'Hare Intl Airport (average of $245). Flying from Denver to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Des Plaines
Gurnee
Hoffman Estates
Elgin
Racine
Rockford
Oak Brook
Elk Grove Village
Beloit
Downers Grove
Naperville
Orland Park
Merrillville
Bridgeview
Warrenville
Arlington Heights
Joliet

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Top 4 airlines flying from Denver to O'Hare Intl

Discover the top 4 airlines that operate flights from Denver to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$166FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$154Average$256FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$156Average$243FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$165Average$304FlexibilityNo cancel feeOn-time69%

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