HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$78+ Cheap flights from Colorado 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ORD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to O'Hare Intl

Keep the following information in mind while searching for Colorado to O'Hare Intl flight deals. Data was last updated julio 31, 2025.

Round-trip from

$130
(FlightHub)

One-way from

$77
(Orbitz)

Popular in

May

Cheapest in

September

Average price

$221

Good round-trip deal

$210 or less

Good one-way deal

$126 or less
From Colorado to Chicago O'Hare Intl
Search Deals
One-way flight from Colorado to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Colorado to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Colorado to Chicago O'Hare Intl.
Search Deals

Find flight deals from Colorado to O'Hare Intl

Cheapest flights from Colorado to O'Hare Intl
Explore the most affordable flight options available from Colorado to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/275:50 pmDEN - ORD
Nonstop2h 52mFrontier
sáb. 8/307:00 amORD - DEN
Nonstop2h 53mFrontier
Deal found 7/30$130
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/267:30 pmDEN - ORD
Nonstop2h 35mSouthwest
mié. 8/2712:40 pmORD - DEN
Nonstop2h 40mSouthwest
Deal found 7/29$161
This American Airlines deal was found by Cheapflights users on 7/30. 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. 8/305:32 pmDEN - ORD
Nonstop2h 46mAmerican Airlines
dom. 8/3111:50 amORD - DEN
Nonstop2h 35mAmerican Airlines
Deal found 7/30$168
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/512:14 pmASE - ORD
Nonstop2h 58mAmerican Airlines
dom. 9/79:31 amORD - ASE
Nonstop3h 10mAmerican Airlines
Deal found 7/29$191
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/56:15 pmASE - ORD
1 stop4h 44mUnited Airlines
dom. 9/77:15 amORD - ASE
1 stop4h 35mUnited Airlines
Deal found 7/29$211
This American Airlines deal was found by Cheapflights users on 7/31. 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. 9/612:25 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
mar. 9/99:56 amORD - COS
Nonstop2h 55mAmerican Airlines
Deal found 7/31$217
This United Airlines deal was found by Cheapflights users on 7/31. 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.
lun. 8/2512:02 pmCOS - ORD
Nonstop2h 41mUnited Airlines
mar. 8/265:00 amORD - COS
1 stop5h 04mUnited Airlines
Deal found 7/31$227
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/108:00 amCOS - ORD
1 stop8h 30mDelta
sáb. 9/133:45 pmORD - COS
1 stop5h 54mDelta
Deal found 7/28$237
This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/244:59 pmDRO - ORD
1 stop6h 00mAmerican Airlines
mié. 10/13:08 pmORD - DRO
1 stop5h 51mAmerican Airlines
Deal found 7/28$238
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/611:05 amCOS - ORD
1 stop4h 40mSouthwest
lun. 9/83:10 pmORD - COS
1 stop7h 35mSouthwest
Deal found 7/28$243
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/266:13 pmGJT - ORD
1 stop4h 46mUnited Airlines
lun. 9/295:01 amORD - GJT
1 stop6h 45mUnited Airlines
Deal found 7/29$249
This American Airlines deal was found by Cheapflights users on 7/30. 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. 8/2310:42 amMTJ - ORD
1 stop7h 30mAmerican Airlines
mar. 8/268:20 amORD - MTJ
1 stop6h 27mAmerican Airlines
Deal found 7/30$249

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 julio 31, 2025.
Use the filters below to find and compare flights from Colorado to Chicago O'Hare Intl Airport that are best for you.

Fly from

Colorado

Fly to

O'Hare Intl

Route

Depart

Return

Price

DenverChicago

DEN - ORD

DENORD

Denver Intl

mié. 8/27

5:50 pm-9:42 pm

Nonstop2h 52m

Chicago O'Hare Intl

sáb. 8/30

7:00 am-8:53 am

Nonstop2h 53m

$130

DenverChicago

DEN - ORD

DENORD

Denver Intl

mar. 8/26

7:30 pm-11:05 pm

Nonstop2h 35m

Chicago O'Hare Intl

mié. 8/27

12:40 pm-2:20 pm

Nonstop2h 40m

$161

DenverChicago

DEN - ORD

DENORD

Denver Intl

sáb. 8/30

12:04 pm-3:47 pm

Nonstop2h 43m

Chicago O'Hare Intl

dom. 8/31

7:10 am-8:51 am

Nonstop2h 41m

$168

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

vie. 9/5

12:14 pm-4:12 pm

Nonstop2h 58m

Chicago O'Hare Intl

dom. 9/7

9:31 am-11:41 am

Nonstop3h 10m

$191

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

vie. 9/5

6:15 pm-11:59 pm

1 stop4h 44m

Chicago O'Hare Intl

dom. 9/7

7:15 am-10:50 am

1 stop4h 35m

$211

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

sáb. 9/6

12:25 pm-4:10 pm

Nonstop2h 45m

Chicago O'Hare Intl

mar. 9/9

9:56 am-11:51 am

Nonstop2h 55m

$217

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

lun. 8/25

12:02 pm-3:43 pm

Nonstop2h 41m

Chicago O'Hare Intl

mar. 8/26

5:00 am-9:04 am

1 stop5h 04m

$227

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

mié. 9/10

8:00 am-5:30 pm

1 stop8h 30m

Chicago O'Hare Intl

sáb. 9/13

3:45 pm-8:39 pm

1 stop5h 54m

$237

DurangoChicago

DRO - ORD

DROORD

Durango La Plata County

mié. 9/24

4:59 pm-11:59 pm

1 stop6h 00m

Chicago O'Hare Intl

mié. 10/1

3:08 pm-7:59 pm

1 stop5h 51m

$238

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

sáb. 9/6

11:05 am-4:45 pm

1 stop4h 40m

Chicago O'Hare Intl

lun. 9/8

3:10 pm-9:45 pm

1 stop7h 35m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 56 results
1
2
3
...
6

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

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

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

Currently, August is the cheapest month in which you can book a flight from Colorado to Chicago O'Hare Intl Airport (average of $245). Flying from Colorado 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 CO to ORD?

Find hourly flight availability from Colorado 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 julio 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Chicago O'Hare Intl Airport as you normally would.

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

Explore weekly flight availability from Colorado 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 julio 31, 2025.

The most flights from USCO to ORD are scheduled on a Thursday (66 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (42 on average).

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 julio 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Colorado to Chicago O'Hare Intl Airport to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Colorado 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 are the cheapest airlines to fly from Colorado to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $77. United Airlines flights start at $79 while deals on Southwest start at $96 one-way.

  • What are the most popular routes from Colorado to Chicago O'Hare Intl Airport?

    The most popular route from Colorado to Chicago O'Hare Intl Airport is Denver Intl - Chicago O'Hare Intl. You may also consider Colorado Springs - Chicago O'Hare Intl or Durango La Plata County - Chicago O'Hare Intl.

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

    Before booking your flight to Chicago O'Hare Intl Airport from Colorado, check out the most reliable airlines to get you to your destination on time: Japan Airlines (88%), Turkish Airlines (88%), Copa Airlines( 87%).

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

    On average you can expect to pay $1,131 for a flight from Colorado to Chicago O'Hare Intl Airport. The cheapest flight overall is $78 while the most popular route, (Denver Intl - Chicago O'Hare Intl) is currently priced at $99.

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

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

  • How can I find direct flights from Colorado 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 Colorado to O'Hare Intl.

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

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

    Currently, August is the cheapest month in which you can book a flight from Colorado to Chicago O'Hare Intl Airport (average of $245). Flying from Colorado 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
Beloit
Hoffman Estates
Skokie
Naperville
Des Plaines
Elgin
Arlington Heights
Elk Grove Village
Racine
Rockford
Tinley Park
Orland Park
Merrillville
Downers Grove
Evanston
Lake Geneva
Gurnee
Joliet

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to O'Hare Intl flights
Newark to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
Seattle to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Boston to O'Hare Intl flights
Baltimore to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Newark to Midway flights
Ontario to O'Hare Intl flights
LaGuardia to Midway flights
Dallas/Fort Worth to Midway flights
Santa Ana to O'Hare Intl flights
Sky Harbor Intl to O'Hare Intl flights
Atlanta to Midway flights
Dulles Intl to Midway flights
Denver to O'Hare Intl flights
Raleigh to O'Hare Intl flights
Burbank to O'Hare Intl flights
Austin to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
Baltimore to Midway flights
Hobby to O'Hare Intl flights
Love Field to O'Hare Intl flights
Miami to O'Hare Intl flights
San Diego to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Charlotte to O'Hare Intl flights
Minneapolis to O'Hare Intl flights
San Jose to O'Hare Intl flights
Portland to O'Hare Intl flights
Nashville to O'Hare Intl flights
Philadelphia to Midway flights
Hobby to Midway flights
Orlando to O'Hare Intl flights
Minneapolis to Midway flights
Oakland to O'Hare Intl flights
Los Angeles to Midway flights
San Francisco to Midway flights
Tampa to O'Hare Intl flights
Boston to Midway flights
Las Vegas to O'Hare Intl flights
Love Field to Midway flights
Reagan-National to Midway flights

Top 5 airlines flying from Colorado to O'Hare Intl

Discover the top 5 airlines that operate flights from Colorado 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$148FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$151Average$386FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$154Average$296FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$162Average$441FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$216FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.