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$63+ Cheap flights from O'Hare Intl (ORD) to Denver (DEN)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DEN
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Denver Intl are usually found in November or September, booked 90 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap flight deals from O'Hare Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Denver (DEN). 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 19, 2025.

Round-trip from

$92
(Frontier)

One-way from

$63
(Frontier)

Popular in

December

Cheapest in

November

Average price

$192

Good round-trip deal

$151 or less

Good one-way deal

$109 or less
From Chicago O'Hare Intl to Denver Intl
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One-way flight from Chicago O'Hare Intl to Denver Intl
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 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 Chicago O'Hare Intl to Denver Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Denver Intl.
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Find flight deals from O'Hare Intl to Denver

Cheapest flights from O'Hare Intl to Denver
Explore the most affordable flight options available from O'Hare Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

This Frontier deal was found by Cheapflights users on 9/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:15 amORD - DEN
Nonstop2h 49mFrontier
Tue 10/712:59 amDEN - ORD
1 stop11h 48mFrontier
Deal found 9/17$92
This Trip.com deal was found by Cheapflights users on 9/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:50 amORD - DEN
Nonstop2h 41mFrontier
Sun 10/196:00 amDEN - ORD
Nonstop2h 36mFrontier
Deal found 9/18$93
This Cheapflightsfares deal was found by Cheapflights users on 9/18. 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 11/126:05 pmORD - DEN
Nonstop2h 54mFrontier
Sun 11/167:08 amDEN - ORD
1 stop15h 36mFrontier
Deal found 9/18$94
This CheapOair deal was found by Cheapflights users on 9/18. 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.
Tue 10/217:15 amORD - DEN
Nonstop2h 49mFrontier
Thu 10/231:42 pmDEN - ORD
1 stop8h 57mFrontier
Deal found 9/18$95
This Frontier deal was found by Cheapflights users on 9/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2410:51 amORD - DEN
Nonstop2h 47mFrontier
Sat 10/2512:05 pmDEN - ORD
1 stop7h 09mFrontier
Deal found 9/17$96
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 10/157:15 amORD - DEN
Nonstop2h 49mFrontier
Sat 10/258:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/17$99
This Priceline deal was found by Cheapflights users on 9/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:15 amORD - DEN
Nonstop2h 49mFrontier
Wed 10/228:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/17$100
This CheapOair deal was found by Cheapflights users on 9/17. 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 11/17:15 amORD - DEN
Nonstop2h 49mFrontier
Mon 11/38:44 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/17$101
This Cheapflightsfares deal was found by Cheapflights users on 9/18. 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.
Sat 10/251:14 pmORD - DEN
1 stop19h 22mFrontier
Tue 10/288:41 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/18$102
This Gotogate deal was found by Cheapflights users on 9/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:15 amORD - DEN
Nonstop2h 49mFrontier
Mon 11/108:13 pmDEN - ORD
1 stop23h 01mFrontier
Deal found 9/18$103
This Trip.com deal was found by Cheapflights users on 9/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:05 pmORD - DEN
Nonstop2h 54mFrontier
Tue 11/1112:05 pmDEN - ORD
Nonstop2h 34mFrontier
Deal found 9/18$104
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:05 pmORD - DEN
Nonstop2h 54mFrontier
Wed 11/1912:05 pmDEN - ORD
Nonstop2h 34mFrontier
Deal found 9/18$105

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Denver 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 19, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Denver that are best for you.

Fly from

O'Hare Intl

Fly to

Denver

Route

Depart

Return

Price

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 11/4

6:05 pm-7:59 pm

Nonstop2h 54m

Denver Intl

Fri 11/7

8:44 pm-12:15 am

Nonstop2h 31m

$132

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Fri 10/31

4:30 pm-11:41 pm

1 stop8h 11m

Denver Intl

Wed 11/5

11:26 am-12:59 am

1 stop12h 33m

$162

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 10/28

1:30 pm-7:45 pm

1 stop7h 15m

Denver Intl

Wed 10/29

6:00 am-3:20 pm

2 stops8h 20m

$182

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Fri 10/24

12:40 pm-2:25 pm

Nonstop2h 45m

Denver Intl

Tue 10/28

6:00 am-3:20 pm

2 stops8h 20m

$182

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 10/28

6:15 am-12:15 pm

1 stop7h 00m

Denver Intl

Thu 10/30

7:10 am-4:25 pm

2 stops8h 15m

$182

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 10/25

7:30 am-6:50 pm

2 stops12h 20m

Denver Intl

Mon 10/27

12:25 pm-10:20 pm

1 stop8h 55m

$182

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 11/11

2:15 pm-10:15 pm

2 stops9h 00m

Denver Intl

Sat 11/15

6:30 am-2:05 pm

1 stop6h 35m

$182

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 10/21

1:30 pm-8:40 pm

2 stops8h 10m

Denver Intl

Sat 10/25

1:40 pm-10:00 pm

2 stops7h 20m

$187

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 2/28

8:07 pm-10:05 pm

Nonstop2h 58m

Denver Intl

Sat 3/7

7:00 pm-10:25 pm

Nonstop2h 25m

$191

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Fri 10/17

12:48 pm-8:22 pm

1 stop8h 34m

Denver Intl

Sun 10/19

12:12 pm-10:17 pm

1 stop9h 05m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 23 results
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The best insider tips for Chicago O'Hare Intl Airport to Denver 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 Chicago O'Hare Intl Airport to Denver trip
Airlines
Frontier

Frontier offers extra comfort seats with 32” separation for a fee, enhancing travel comfort.


Frontier's Zone 1 boarding is available with a carry-on purchase or special fare bundle.

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 MileagePlus program allows pooling miles for family or friends' tickets.

Read more about United Airlinesby Harriet Baskas
Southwest

Enjoy free snacks and non-alcoholic drinks, plus a free drink on special occasions.


Southwest offers free messaging and high-speed Wi-Fi for a fee on flights.

Read more about Southwestby Marisa Garcia
Airports
ORD

For a smooth departure from ORD, consider taking the "L" train to avoid traffic and reach the airport efficiently.

Read more about ORDby Ramsey Qubein
DEN

Upon arrival at DEN, use the A Line train for a quick connection to downtown Denver in 37 minutes.

Read more about DENby Emily Zemler
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 O'Hare Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from O'Hare Intl 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 Chicago O'Hare Intl Airport to Denver

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Denver. Price data was last updated on September 12, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Denver is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Denver (average of $197). Flying from Chicago O'Hare Intl Airport to Denver in March is currently the most expensive (average of $278). 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 ORD to DEN?

Find hourly flight availability from O'Hare Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Denver in the afternoon. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Denver. Price data was last updated on September 14, 2025.

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

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated September 19, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Chicago O'Hare Intl Airport to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,925 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Denver. 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 into for flights to Denver from Chicago O'Hare Intl?

    Located just 18.5 mi from the city center, Denver Intl is the airport most travelers will use when flying to Denver from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Denver Intl (DEN) should be relatively easy as there are 57 daily inbound flights from Chicago O'Hare Intl from 4 different airlines.

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

    Frontier and Southwest can get you from Chicago O'Hare Intl Airport to Denver in just under 2h 54m. Your travel time can differ by up to 4h 21m. The distance between Chicago O'Hare Intl Airport and Denver is about 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 Chicago O'Hare Intl Airport to Denver round-trip?

    Flying on Frontier is currently your cheapest option to Denver, with prices starting at $58. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $152 and $157, respectively. Frontier is currently priced 73% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Denver one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $63. United Airlines flights start at $79 while deals on Southwest start at $79 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to Denver on time: Frontier (85%), United Airlines (74%), Copa Airlines (70%).

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

    The cheapest flight price from Chicago O'Hare Intl Airport to Denver is $67. On average you can expect to pay $490. The most popular route, (Chicago O'Hare Intl - Denver Intl), can usually be booked for $107.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Denver 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 Chicago O'Hare Intl Airport to Denver?

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Denver (average of $197). Flying from Chicago O'Hare Intl Airport to Denver in March is currently the most expensive (average of $278). 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 Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Top 4 airlines flying from O'Hare Intl to Denver

Discover the top 4 airlines that operate flights from O'Hare Intl to Denver. 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 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$142FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$152Average$231FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$157Average$249FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$161Average$292FlexibilityNo cancel feeOn-time69%

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