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O'Hare Intl

$78+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Chicago O'Hare Intl are usually found in September or October, booked 57 days in advance, depart on a Friday or Thursday and return on a Friday

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 junio 12, 2025.

Round-trip from

$159
(Cheapflightsfares)

One-way from

$78
(American Airlines)

Popular in

May

Cheapest in

September

Average price

$255

Good round-trip deal

$241 or less

Good one-way deal

$126 or less
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. 10% potential increase in price ($25 potential increase over avg. RT price).
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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 June 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 junio 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
jue. 7/38:21 pmDEN - ORD
Nonstop2h 38mFrontier
sáb. 7/57:00 amORD - DEN
Nonstop2h 53mFrontier
Deal found 6/10$159
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/61:15 pmDEN - ORD
Nonstop2h 30mSouthwest
mar. 8/123:10 pmORD - DEN
1 stop8h 25mSouthwest
Deal found 6/11$167
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/25:36 pmDEN - ORD
Nonstop2h 45mAmerican Airlines
mar. 8/59:50 amORD - DEN
Nonstop2h 41mAmerican Airlines
Deal found 6/11$177
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/207:50 amDEN - ORD
Nonstop2h 35mUnited Airlines
mar. 7/229:32 pmORD - DEN
Nonstop2h 50mUnited Airlines
Deal found 6/11$189
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/512:55 amDEN - ORD
1 stop5h 54mDelta
lun. 8/115:30 pmORD - DEN
1 stop7h 45mDelta
Deal found 6/12$217
This Sun Country Air deal was found by Cheapflights users on 6/12. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/118:55 pmDEN - ORD
1 stop19h 14mSun Country Air
lun. 7/146:21 pmORD - DEN
1 stop18h 01mSun Country Air
Deal found 6/12$265
This CheapOair deal was found by Cheapflights users on 6/12. 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.
mié. 7/28:21 pmDEN - ORD
Nonstop2h 38mMultiple Airlines
lun. 7/76:15 pmORD - DEN
1 stop18h 14mMultiple Airlines
Deal found 6/12$268

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 junio 12, 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

jue. 8/28

5:32 pm-9:18 pm

Nonstop2h 46m

Chicago O'Hare Intl

lun. 9/1

11:50 am-1:25 pm

Nonstop2h 35m

$158

DenverChicago

DEN - ORD

DENORD

Denver Intl

jue. 7/3

8:21 pm-11:59 pm

Nonstop2h 38m

Chicago O'Hare Intl

sáb. 7/5

7:00 am-8:53 am

Nonstop2h 53m

$159

DenverChicago

DEN - ORD

DENORD

Denver Intl

lun. 8/11

5:00 am-1:05 pm

1 stop7h 05m

Chicago O'Hare Intl

mié. 8/13

7:00 am-8:40 am

Nonstop2h 40m

$167

DenverChicago

DEN - ORD

DENORD

Denver Intl

mar. 7/8

6:35 am-3:03 pm

1 stop7h 28m

Chicago O'Hare Intl

mar. 7/15

5:20 pm-11:06 pm

1 stop6h 46m

$217

DenverChicago

DEN - ORD

DENORD

Denver Intl

vie. 7/11

8:55 pm-5:09 pm

1 stop19h 14m

Chicago O'Hare Intl

lun. 7/14

6:21 pm-11:22 am

1 stop18h 01m

$265

DenverChicago

DEN - ORD

DENORD

Denver Intl

mar. 10/21

2:06 pm-5:54 pm

Nonstop2h 48m

$78

DenverChicago

DEN - ORD

DENORD

Denver Intl

mié. 8/6

7:30 pm-11:05 pm

Nonstop2h 35m

$79

DenverChicago

DEN - ORD

DENORD

Denver Intl

sáb. 8/9

7:50 am-11:25 am

Nonstop2h 35m

$80

DenverChicago

DEN - ORD

DENORD

Denver Intl

mar. 8/5

12:59 am-10:25 am

1 stop8h 26m

$83

DenverChicago

DEN - ORD

DENORD

Denver Intl

mar. 7/8

12:55 am-7:49 am

1 stop5h 54m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 14 results
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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
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
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
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
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
Marisa Garcia

Marisa Garcia

Expert on Frontier

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
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 June 9, 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 57 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 junio 12, 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 73% 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 June 8, 2025.

Travelers seeking maximum savings on their Denver to Chicago O'Hare Intl Airport flight should consider departing on Tuesday 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.

Weekly flight availability from Denver to Chicago O'Hare Intl Airport

Explore weekly flight availability from Denver to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated junio 12, 2025.

The most flights from DEN to ORD are scheduled on a Monday (67 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (49 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 junio 12, 2025.
Read through reviews of airlines operating flights from Denver to Chicago, such as Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 60 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.

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

    Frontier, at $159, 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 28% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $78. Southwest flights start at $79 while deals on United Airlines start at $80 one-way.

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

    Consider Turkish Airlines (98%), Copa Airlines (98%) or Cathay Pacific (93%) 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 $2,328, our data indicates the cheapest price to be $84. The most popular route (Denver Intl - Chicago O'Hare Intl), is priced around $128.

  • 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 Denver?

Book flights to Denver if you plan to visit one of these locations
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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$142FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$149Average$230FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$155Average$245FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$156Average$303FlexibilityNo cancel feeOn-time69%

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