How many flights depart from Colorado to Chicago O'Hare Intl Airport on average per day?

42 flights are operational daily from Colorado to Chicago O'Hare Intl Airport as of August 2025. The most popular departure time for this route is 12:00PM, with 49% of flights per day taking off in the afternoon.

How many flights depart from Colorado to Chicago O'Hare Intl Airport on average per week?

As of August 2025, there are 296 flights per week flying from Colorado to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Tue, with 25% of flights taking off on this day.

What airlines fly to Chicago O'Hare Intl Airport?

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Colorado according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 5 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago O'Hare Intl Airport?

On average, it takes 2h 23m to fly from Colorado to Chicago O'Hare Intl Airport if you fly out of Denver (the most popular airport in Colorado) and into Chicago O'Hare Intl Airport (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Colorado Springs and into Chicago O'Hare Intl Airport, then the flight time is around 2h 41m.

What is the cheapest airline that flies from Colorado to Chicago O'Hare Intl?

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Colorado to Chicago O'Hare Intl

How many operators does momondo search for flights from Colorado to Chicago O'Hare Intl Airport?

As of August 2025, there are 5 operators available to choose from for flights from Colorado to Chicago O'Hare Intl Airport.

How old do you have to be to fly from Colorado to Chicago O'Hare Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$45 Cheap Flights from Colorado to Chicago O'Hare Intl Airport in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Colorado to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:00 am - 9:37 amDEN-ORD

2h 37mnonstop

7:20 am - 9:13 amORD-DEN

2h 53mnonstop

$80Frontier

Find Deal

Mon, Sep 15 - Tue, Sep 23

6:00 am - 9:37 amDEN-ORD

2h 37mnonstop

8:25 am - 10:16 amORD-DEN

2h 51mnonstop

$94Frontier

Find Deal

Mon, Sep 15 - Sat, Sep 20

7:30 pm - 11:05 pmDEN-ORD

2h 35mnonstop

6:55 pm - 8:50 pmORD-DEN

2h 55mnonstop

$135Southwest

Find Deal

Tue, Sep 2 - Tue, Sep 9

7:30 pm - 11:05 pmDEN-ORD

2h 35mnonstop

7:00 am - 8:40 amORD-DEN

2h 40mnonstop

$136Southwest

Find Deal

Thu, Sep 4 - Mon, Sep 8

12:25 pm - 4:10 pmCOS-ORD

2h 45mnonstop

9:56 am - 11:51 amORD-COS

2h 55mnonstop

$139American Airlines

Find Deal

Sat, Sep 6 - Tue, Sep 9

6:00 am - 9:41 amCOS-ORD

2h 41mnonstop

7:51 pm - 9:41 pmORD-COS

2h 50mnonstop

$156United Airlines

Find Deal

Sun, Sep 28 - Wed, Oct 1

12:02 pm - 3:43 pmCOS-ORD

2h 41mnonstop

9:07 am - 10:56 amORD-COS

2h 49mnonstop

$173United Airlines

Find Deal

Fri, Aug 29 - Sun, Aug 31

12:25 pm - 4:10 pmCOS-ORD

2h 45mnonstop

9:56 am - 11:51 amORD-COS

2h 55mnonstop

$199American Airlines

Find Deal

Sat, Sep 6 - Tue, Sep 9

11:11 am - 8:23 pmCOS-ORD

8h 12m2 stops

6:10 am - 10:16 amORD-COS

5h 06m1 stop

$222Delta

Find Deal

Thu, Sep 4 - Sun, Sep 7

5:55 pm - 8:40 amCOS-ORD

13h 45m2 stops

11:00 am - 10:11 pmORD-COS

12h 11m2 stops

$227Delta

Find Deal

Mon, Sep 22 - Sat, Sep 27

Frontier flights from Colorado to Chicago O'Hare Intl Airport

Our best Frontier deals on Colorado to Chicago O'Hare Intl Airport flight tickets

Frontier

Sep 15

DEN6:00 amDenver Intl

2h 37m

ORD9:37 amChicago O'Hare Intl

Sep 23

ORD7:20 amChicago O'Hare Intl

2h 53m

DEN9:13 amDenver Intl

$80

Find similar

Frontier

Sep 15

DEN6:00 amDenver Intl

2h 37m

ORD9:37 amChicago O'Hare Intl

Sep 20

ORD8:25 amChicago O'Hare Intl

2h 51m

DEN10:16 amDenver Intl

$94

Find similar

Frontier

Sep 15

DEN6:00 amDenver Intl

2h 37m

ORD9:37 amChicago O'Hare Intl

Sep 23

ORD7:20 amChicago O'Hare Intl

2h 53m

DEN9:13 amDenver Intl

$96

Find similar

Southwest flights from Colorado to Chicago O'Hare Intl Airport

Our best Southwest deals on Colorado to Chicago O'Hare Intl Airport flight tickets

Southwest

Sep 2

DEN7:30 pmDenver Intl

2h 35m

ORD11:05 pmChicago O'Hare Intl

Sep 9

ORD6:55 pmChicago O'Hare Intl

2h 55m

DEN8:50 pmDenver Intl

$135

Find similar

Southwest

Sep 4

DEN7:30 pmDenver Intl

2h 35m

ORD11:05 pmChicago O'Hare Intl

Sep 8

ORD7:00 amChicago O'Hare Intl

2h 40m

DEN8:40 amDenver Intl

$136

Find similar

Southwest

Sep 4

DEN7:30 pmDenver Intl

2h 35m

ORD11:05 pmChicago O'Hare Intl

Sep 11

ORD4:20 pmChicago O'Hare Intl

6h 20m

1 stop

DEN9:40 pmDenver Intl

$145

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverChicago

DEN - ORD

DENORD

Denver Intl

Mon 9/15

6:00 am-9:37 am

Nonstop2h 37m

Chicago O'Hare Intl

Tue 9/23

7:20 am-9:13 am

Nonstop2h 53m

$80

DenverChicago

DEN - ORD

DENORD

Denver Intl

Mon 9/15

6:00 am-9:37 am

Nonstop2h 37m

Chicago O'Hare Intl

Sat 9/20

8:25 am-10:16 am

Nonstop2h 51m

$94

DenverChicago

DEN - ORD

DENORD

Denver Intl

Tue 9/2

7:30 pm-11:05 pm

Nonstop2h 35m

Chicago O'Hare Intl

Tue 9/9

6:55 pm-8:50 pm

Nonstop2h 55m

$135

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 9/4

7:30 pm-11:05 pm

Nonstop2h 35m

Chicago O'Hare Intl

Mon 9/8

7:00 am-8:40 am

Nonstop2h 40m

$136

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Sat 9/6

12:25 pm-4:10 pm

Nonstop2h 45m

Chicago O'Hare Intl

Tue 9/9

9:56 am-11:51 am

Nonstop2h 55m

$139

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Sun 9/28

6:00 am-9:41 am

Nonstop2h 41m

Chicago O'Hare Intl

Wed 10/1

7:51 pm-9:41 pm

Nonstop2h 50m

$156

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Fri 8/29

12:02 pm-3:43 pm

Nonstop2h 41m

Chicago O'Hare Intl

Sun 8/31

9:07 am-10:56 am

Nonstop2h 49m

$173

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Sat 9/6

12:25 pm-4:10 pm

Nonstop2h 45m

Chicago O'Hare Intl

Tue 9/9

9:56 am-11:51 am

Nonstop2h 55m

$199

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Thu 9/4

11:11 am-8:23 pm

2 stops8h 12m

Chicago O'Hare Intl

Sun 9/7

6:10 am-10:16 am

1 stop5h 06m

$222

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Mon 9/22

5:55 pm-8:40 am

2 stops13h 45m

Chicago O'Hare Intl

Sat 9/27

11:00 am-10:11 pm

2 stops12h 11m

$227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

The month of October is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Colorado averaging around $187.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $326. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $543.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Colorado in the evening is the least expensive time of day to depart. momondo users have found prices as low as $199 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $683. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Colorado to Chicago O'Hare Intl flight route?

Fly from Denver Intl to Chicago O'Hare Intl for the best Colorado - Chicago O'Hare Intl flight prices

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $226 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Colorado for as low as $190 on momondo.

What cabin class options are available on Colorado to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Colorado to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Colorado to Chicago O'Hare Intl Airport.

Cheap Colorado to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Chicago O'Hare Intl Airport

Best Price Found	$45
Fastest flight time	2h 25m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from Colorado in the past 72 hours is $45. The best round-trip flight deal from Colorado to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $80.

The fastest flight from Colorado to Chicago O'Hare Intl Airport takes 2h 25m

Direct flights go from Colorado to Chicago O'Hare Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Colorado to Chicago O'Hare Intl Airport?
Prices for flights from Colorado to Chicago O'Hare Intl Airport refresh daily.
How many operators does momondo search for flights from Colorado to Chicago O'Hare Intl Airport?
As of August 2025, there are 5 operators available to choose from for flights from Colorado to Chicago O'Hare Intl Airport.
How old do you have to be to fly from Colorado to Chicago O'Hare Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Colorado to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between Colorado and Chicago O'Hare Intl Airport, the leading plane model is Airbus A321neo, making up 11.21% of the total bookings. Other popular models include Boeing 737-800 with 10.54%, Boeing 737-800 Passenger/BBJ2 (winglets) with 9.43%, and Boeing 757-300 with 9.15%.

Best airlines flying from Colorado to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Colorado to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $55	Free Cancellation	Rating 5.8 3,232 reviews	Search Frontier flights
American Airlines	PriceFrom $152	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $154	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $164	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights

Lake Geneva

Rockford

Schaumburg

South Haven

Merrillville

Gurnee

Naperville

Rosemont

Kenosha

New Buffalo

Joliet

Oak Brook

Racine

Hammond

Tinley Park

Elgin

Orland Park

Aurora

Janesville

Benton Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Chicago?

It is quick and easy to find Colorado to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from Colorado to Chicago with flexible booking policies on momondo?

All flight searches from Colorado to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Colorado to Chicago?

momondo helps you find the best flight between Colorado and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Colorado to Chicago right now. Can momondo alert me if prices change?

Price alerts on flights to Chicago from Colorado are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sun 8/10

Sun 8/17

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago

Popular cities in the United States

Flights to New York John F Kennedy Intl Airportfrom $90

Flights to Dallas/Fort Worth Airportfrom $58

Flights to Newark Airportfrom $57

Flights to New York LaGuardia Airportfrom $58

Flights to Washington, D.C. Dulles Intl Airportfrom $73

Flights to Orlando Airportfrom $61

Flights to Washington, D.C. Reagan-National Airportfrom $111

Flights to Chicago Midway Airport

Flights to Dallas Love Field Airport

Cheap flights from Colorado to Chicago from $45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Chicago departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Colorado to Chicago

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Colorado to Chicago O'Hare Intl Airport

Our best Frontier deals on Colorado to Chicago O'Hare Intl Airport flight tickets

Southwest flights from Colorado to Chicago O'Hare Intl Airport

Our best Southwest deals on Colorado to Chicago O'Hare Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Chicago O'Hare Intl Airport that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from Colorado to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

The month of October is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Colorado averaging around $187.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest Colorado to Chicago O'Hare Intl flight route?

Fly from Denver Intl to Chicago O'Hare Intl for the best Colorado - Chicago O'Hare Intl flight prices

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

What cabin class options are available on Colorado to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Colorado to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Chicago O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Colorado to Chicago O'Hare Intl Airport.

What is the cheapest airline that flies from Colorado to Chicago O'Hare Intl?

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Colorado to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

How many flights depart from Colorado to Chicago O'Hare Intl Airport on average per day?

42 flights are operational daily from Colorado to Chicago O'Hare Intl Airport as of August 2025. The most popular departure time for this route is 12:00PM, with 49% of flights per day taking off in the afternoon.

How many flights depart from Colorado to Chicago O'Hare Intl Airport on average per week?

As of August 2025, there are 296 flights per week flying from Colorado to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Tue, with 25% of flights taking off on this day.

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap Colorado to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Chicago O'Hare Intl Airport

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Colorado to Chicago O'Hare Intl Airport?

How many operators does momondo search for flights from Colorado to Chicago O'Hare Intl Airport?

How old do you have to be to fly from Colorado to Chicago O'Hare Intl Airport?

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

What is the most popular plane model from Colorado to Chicago O'Hare Intl Airport?

Best airlines flying from Colorado to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Colorado to Chicago O'Hare Intl Airport with momondo

Traveling to a place near Chicago?

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Chicago?

Can I find flights from Colorado to Chicago with flexible booking policies on momondo?

How can momondo help me find flights from Colorado to Chicago?

I’m not ready to book a flight from Colorado to Chicago right now. Can momondo alert me if prices change?

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Chicago

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo