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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 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
Frontier Logo
9:00 pm - 12:38 am
DEN
-
ORD
2h 38mnonstop
Frontier Logo
2:29 pm - 4:40 pm
ORD
-
DEN
3h 11mnonstop
$177Frontier
Sat, Apr 11 - Mon, Apr 13
Delta Logo
1:14 pm - 10:28 pm
COS
-
MDW
8h 14m
1 stop
Delta Logo
6:00 am - 12:17 pm
MDW
-
COS
7h 17m
1 stop
$221Delta
Tue, Apr 14 - Wed, Apr 15
Delta Logo
11:55 am - 10:28 pm
COS
-
MDW
9h 33m
2 stops
Delta Logo
6:00 am - 12:17 pm
MDW
-
COS
7h 17m
1 stop
$261Delta
Tue, Apr 14 - Wed, Apr 15
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
4:58 pm - 11:48 pm
GJT
-
ORD
5h 50m
1 stop
American Airlines Logo
5:00 am - 11:16 am
ORD
-
GJT
7h 16m
1 stop
$299American Airlines
Wed, Apr 8 - Sun, Apr 12
Multiple Airlines Logo
12:52 pm - 8:37 pm
GJT
-
ORD
30h 45m
2 stops
Multiple Airlines Logo
8:52 pm - 12:13 pm
ORD
-
GJT
16h 21m
1 stop
$328Multiple Airlines
Tue, May 5 - Mon, May 11
Multiple Airlines Logo
7:57 pm - 6:08 am
GJT
-
ORD
33h 11m
2 stops
Multiple Airlines Logo
8:52 pm - 12:13 pm
ORD
-
GJT
16h 21m
1 stop
$365Multiple Airlines
Thu, Apr 30 - Mon, May 11

Frontier flights from Colorado to Chicago

Our best Frontier deals on Colorado to Chicago flight tickets
Frontier
Jun 4
DEN4:59 pmDenver Intl
2h 38m
ORD8:37 pmChicago O'Hare Intl
Jun 7
ORD9:42 pmChicago O'Hare Intl
3h 10m
DEN11:52 pmDenver Intl
$176
Frontier
Apr 11
DEN9:00 pmDenver Intl
2h 38m
ORD12:38 amChicago O'Hare Intl
Apr 13
ORD2:29 pmChicago O'Hare Intl
3h 11m
DEN4:40 pmDenver Intl
$177
Frontier
Apr 7
DEN4:34 pmDenver Intl
6h 06m
1 stop
ORD11:40 pmChicago O'Hare Intl
Apr 9
ORD6:00 pmChicago O'Hare Intl
6h 58m
1 stop
DEN11:58 pmDenver Intl
$178

United Airlines flights from Colorado to Chicago

Our best United Airlines deals on Colorado to Chicago flight tickets
United Airlines
May 5
DEN8:20 pmDenver Intl
2h 37m
ORD11:57 pmChicago O'Hare Intl
May 9
ORD8:20 pmChicago O'Hare Intl
2h 59m
DEN10:19 pmDenver Intl
$175
United Airlines
Apr 23
DEN8:52 pmDenver Intl
2h 38m
ORD12:30 amChicago O'Hare Intl
Apr 25
ORD2:30 pmChicago O'Hare Intl
2h 54m
DEN4:24 pmDenver Intl
$191
United Airlines
Apr 21
DEN6:00 amDenver Intl
2h 37m
ORD9:37 amChicago O'Hare Intl
Apr 22
ORD7:00 amChicago O'Hare Intl
2h 55m
DEN8:55 amDenver Intl
$217

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Chicago 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 24, 2026.
Use the filters below to find and compare flights from Colorado to Chicago 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

Sat 4/11

9:00 pm-12:38 am

Nonstop2h 38m

Chicago O'Hare Intl

Mon 4/13

2:29 pm-4:40 pm

Nonstop3h 11m

$177

Colorado SpringsChicago

COS - MDW

COSMDW

Colorado Springs

Tue 4/14

1:14 pm-10:28 pm

1 stop8h 14m

Chicago Midway

Wed 4/15

6:00 am-12:17 pm

1 stop7h 17m

$221

Colorado SpringsChicago

COS - MDW

COSMDW

Colorado Springs

Tue 4/14

11:55 am-10:28 pm

2 stops9h 33m

Chicago Midway

Wed 4/15

6:00 am-12:17 pm

1 stop7h 17m

$261

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

Grand JunctionChicago

GJT - ORD

GJTORD

Grand Junction Regnl

Wed 4/8

4:58 pm-11:48 pm

1 stop5h 50m

Chicago O'Hare Intl

Sun 4/12

5:00 am-11:16 am

1 stop7h 16m

$299

Grand JunctionChicago

GJT - ORD

GJTORD

Grand Junction Regnl

Tue 5/5

12:52 pm-8:37 pm

2 stops30h 45m

Chicago O'Hare Intl

Mon 5/11

8:52 pm-12:13 pm

1 stop16h 21m

$328

Grand JunctionChicago

GJT - ORD

GJTORD

Grand Junction Regnl

Thu 4/30

7:57 pm-6:08 am

2 stops33h 11m

Chicago O'Hare Intl

Mon 5/11

8:52 pm-12:13 pm

1 stop16h 21m

$365

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

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?

The month of August is, on average, the cheapest month to fly to Chicago from Colorado, with most prices found around $195. If you’re not able to fly to Chicago in August, then September is your next best option. Flight prices from Colorado to Chicago during September average around $197.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $293. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Colorado to Chicago for around $524.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Colorado to Chicago during this time can be as low as $211. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $548.

What is the cheapest Colorado to Chicago flight route?

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

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago 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 from Colorado for as low as $199 on momondo.

What cabin class options are available on Colorado to Chicago flights?

There are 4 cabin classes available to choose from on Colorado to Chicago 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 flights?

No. A direct flight is the cheapest option for a flight between Colorado to Chicago.

Cheap Colorado to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Chicago

Best Price Found

$149

Fastest flight time

2h 15m

Direct flights

Every day

Airports in Chicago

3 airports
The best one-way flight to Chicago from Colorado in the past 72 hours is $149. The best round-trip flight deal from Colorado to Chicago found on momondo in the last 72 hours is $268.
The fastest flight from Colorado to Chicago takes 2h 15m
Direct flights go from Colorado to Chicago every day.
There are 3 airports in Chicago. From Colorado there are direct flights to Chicago Midway (MDW).
Search flight deals

  • When did momondo last update prices for flights from Colorado to Chicago?

    Prices for flights from Colorado to Chicago are updated daily.

  • How many operators does momondo search for flights from Colorado to Chicago?

  • How old do you have to be to fly from Colorado to Chicago?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents you'll need for your trip to Chicago 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. 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?

Best airlines flying from Colorado to Chicago

Compare and see reviews for airlines that fly from Colorado to Chicago with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $75Free CancellationRating
5.7
3,017 reviews
Search Frontier flights
JetBluePriceFrom $126Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
SouthwestPriceFrom $155Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
American AirlinesPriceFrom $157Free CancellationRating
7.1
11,492 reviews
Search American Airlines flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
9,475 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Saint Joseph
Benton Harbor
Portage
Lansing
Valparaiso
Schererville
Munster
Crown Point
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Colorado to Chicago. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Chicago from Colorado with this policy.

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

Once all potential Colorado to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Colorado to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport