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Cheap flights from Colorado to Chicago from $90

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 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
11:25 am - 3:00 pm
DEN
-
ORD
2h 35mnonstop
Southwest Logo
11:55 am - 7:25 pm
ORD
-
DEN
8h 30m
2 stops
$174Southwest
Tue, May 12 - Wed, May 13
United Airlines Logo
8:20 pm - 11:57 pm
DEN
-
ORD
2h 37mnonstop
United Airlines Logo
8:20 pm - 10:19 pm
ORD
-
DEN
2h 59mnonstop
$175United Airlines
Tue, May 5 - Sat, May 9
Frontier Logo
4:59 pm - 8:37 pm
DEN
-
ORD
2h 38mnonstop
Frontier Logo
9:42 pm - 11:52 pm
ORD
-
DEN
3h 10mnonstop
$176Frontier
Thu, Jun 4 - Sun, Jun 7
Multiple Airlines Logo
5:05 am - 2:05 pm
DEN
-
ORD
8h 00m
2 stops
Multiple Airlines Logo
9:42 pm - 11:52 pm
ORD
-
DEN
3h 10mnonstop
$177Multiple Airlines
Thu, May 7 - Mon, May 11
Frontier Logo
9:00 pm - 12:38 am
DEN
-
ORD
2h 38mnonstop
Frontier Logo
7:40 am - 12:36 am
ORD
-
DEN
17h 56m
1 stop
$178Frontier
Sat, Apr 11 - Sun, Apr 12
Frontier Logo
1:31 pm - 9:47 pm
DEN
-
ORD
7h 16m
1 stop
Frontier Logo
5:25 am - 11:08 pm
ORD
-
DEN
18h 43m
1 stop
$179Frontier
Thu, Apr 9 - Sun, Apr 12
Delta Logo
1:55 pm - 11:59 pm
COS
-
ORD
9h 04m
1 stop
Delta Logo
7:05 am - 12:48 pm
ORD
-
COS
6h 43m
1 stop
$267Delta
Wed, May 13 - Sat, May 16
Delta Logo
8:15 am - 9:20 pm
COS
-
ORD
12h 05m
2 stops
Delta Logo
7:05 am - 12:48 pm
ORD
-
COS
6h 43m
1 stop
$272Delta
Wed, May 13 - Sat, May 16
American Airlines Logo
5:04 pm - 11:48 pm
DRO
-
ORD
5h 44m
1 stop
American Airlines Logo
5:00 am - 11:11 am
ORD
-
DRO
7h 11m
1 stop
$288American Airlines
Mon, Apr 20 - Mon, Apr 27
American Airlines Logo
1:39 pm - 10:00 pm
COS
-
ORD
7h 21m
1 stop
American Airlines Logo
6:57 am - 12:49 pm
ORD
-
COS
6h 52m
1 stop
$291American Airlines
Wed, Apr 29 - Sat, May 2

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
Apr 4
DEN9:00 pmDenver Intl
2h 38m
ORD12:38 amChicago O'Hare Intl
Apr 11
ORD5:53 pmChicago O'Hare Intl
3h 08m
DEN8:01 pmDenver Intl
$175
Frontier
Apr 4
DEN9:00 pmDenver Intl
2h 38m
ORD12:38 amChicago O'Hare Intl
Apr 9
ORD5:15 amChicago O'Hare Intl
7h 54m
1 stop
DEN12:09 pmDenver Intl
$176
Frontier
Apr 8
DEN12:13 amDenver Intl
11h 11m
1 stop
ORD12:24 pmChicago O'Hare Intl
Apr 11
ORD5:53 pmChicago O'Hare Intl
3h 08m
DEN8:01 pmDenver Intl
$178

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
May 12
DEN11:25 amDenver Intl
2h 35m
ORD3:00 pmChicago O'Hare Intl
May 13
ORD11:55 amChicago O'Hare Intl
8h 30m
2 stops
DEN7:25 pmDenver Intl
$174
Southwest
Apr 21
DEN6:15 amDenver Intl
5h 35m
1 stop
ORD12:50 pmChicago O'Hare Intl
Apr 25
ORD3:05 pmChicago O'Hare Intl
3h 00m
DEN5:05 pmDenver Intl
$185
Southwest
Apr 23
DEN7:00 amDenver Intl
7h 30m
1 stop
ORD3:30 pmChicago O'Hare Intl
Apr 28
ORD10:30 amChicago O'Hare Intl
2h 45m
DEN12:15 pmDenver Intl
$186

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated March 26, 2026.
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

Cheapest round-trip

DenverChicago

DEN - ORD

DENORD

Denver Intl

Tue 5/12

11:25 am-3:00 pm

Nonstop2h 35m

Chicago O'Hare Intl

Wed 5/13

11:55 am-7:25 pm

2 stops8h 30m

$174
Quickest round-trip

DenverChicago

DEN - ORD

DENORD

Denver Intl

Tue 5/5

8:20 pm-11:57 pm

Nonstop2h 37m

Chicago O'Hare Intl

Sat 5/9

8:20 pm-10:19 pm

Nonstop2h 59m

$175

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 6/4

4:59 pm-8:37 pm

Nonstop2h 38m

Chicago O'Hare Intl

Sun 6/7

9:42 pm-11:52 pm

Nonstop3h 10m

$176

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 5/7

5:05 am-2:05 pm

2 stops8h 00m

Chicago O'Hare Intl

Mon 5/11

9:42 pm-11:52 pm

Nonstop3h 10m

$177

DenverChicago

DEN - ORD

DENORD

Denver Intl

Sat 4/11

9:00 pm-12:38 am

Nonstop2h 38m

Chicago O'Hare Intl

Sun 4/12

7:40 am-12:36 am

1 stop17h 56m

$178

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 4/9

1:31 pm-9:47 pm

1 stop7h 16m

Chicago O'Hare Intl

Sun 4/12

5:25 am-11:08 pm

1 stop18h 43m

$179

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Wed 5/13

1:55 pm-11:59 pm

1 stop9h 04m

Chicago O'Hare Intl

Sat 5/16

7:05 am-12:48 pm

1 stop6h 43m

$267

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Wed 5/13

8:15 am-9:20 pm

2 stops12h 05m

Chicago O'Hare Intl

Sat 5/16

7:05 am-12:48 pm

1 stop6h 43m

$272

DurangoChicago

DRO - ORD

DROORD

Durango La Plata County

Mon 4/20

5:04 pm-11:48 pm

1 stop5h 44m

Chicago O'Hare Intl

Mon 4/27

5:00 am-11:11 am

1 stop7h 11m

$288

Colorado SpringsChicago

COS - ORD

COSORD

Colorado Springs

Wed 4/29

1:39 pm-10:00 pm

1 stop7h 21m

Chicago O'Hare Intl

Sat 5/2

6:57 am-12:49 pm

1 stop6h 52m

$291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Colorado averaging around $227.

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 Thursday when prices can be found for as low as $304. 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 $571.

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 $209 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $599. 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 $254 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 $199 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

$149

Fastest flight time

2h 30m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Colorado in the past 72 hours is $149. The best round-trip flight deal from Colorado to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $268.
The fastest flight from Colorado to Chicago O'Hare Intl Airport takes 2h 30m
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?

  • 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?

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
FrontierPriceFrom $75Free CancellationRating
5.7
3,017 reviews
Search Frontier flights
JetBluePriceFrom $126Free CancellationRating
7.2
2,903 reviews
Search JetBlue flights
SouthwestPriceFrom $155Free CancellationRating
8.0
4,333 reviews
Search Southwest flights
American AirlinesPriceFrom $157Free CancellationRating
7.1
11,494 reviews
Search American Airlines flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
9,479 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Rosemont
Naperville
New Buffalo
Orland Park
Kenosha
Oak Brook
Joliet
Janesville
Racine
Hammond
Aurora
Elgin
Tinley Park
South Holland

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.

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