$84 Find Cheap Flights from Colorado to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Chicago departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$120
Overall average: $232
Frontier
Thu 4/9Mon 4/13
DEN - ORD • 1 stop
Cheapest non-stop
$123
Typical prices: $189-$308
Frontier
Thu 4/16Sun 4/19
DEN - ORD • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Colorado to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado to Chicago

Thu, Apr 9 - Mon, Apr 13
Frontier Logo
6:00 am - 3:09 pm
DEN
-
ORD
8h 09m
1 stop
Frontier Logo
2:29 pm - 4:49 pm
ORD
-
DEN
3h 20mnonstop
$120Frontier
Thu, Feb 12 - Thu, Feb 19
Frontier Logo
9:00 pm - 1:20 pm
DEN
-
ORD
15h 20m
1 stop
Frontier Logo
4:16 pm - 6:23 pm
ORD
-
DEN
3h 07mnonstop
$121Frontier
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
7:20 am - 10:55 am
DEN
-
MDW
2h 35mnonstop
Southwest Logo
5:55 am - 7:40 am
MDW
-
DEN
2h 45mnonstop
$162Southwest
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
6:40 am - 2:45 pm
COS
-
ORD
7h 05m
1 stop
Southwest Logo
6:20 pm - 10:15 pm
ORD
-
COS
4h 55m
1 stop
$209Southwest
Sat, Mar 7 - Tue, Mar 10
Delta Logo
3:40 pm - 9:30 pm
HDN
-
ORD
4h 50m
1 stop
Delta Logo
7:10 am - 1:00 pm
ORD
-
HDN
6h 50m
1 stop
$219Delta
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
12:21 pm - 4:06 pm
COS
-
ORD
2h 45mnonstop
American Airlines Logo
9:50 am - 11:51 am
ORD
-
COS
3h 01mnonstop
$222American Airlines
Wed, Apr 8 - Fri, Apr 10
Delta Logo
12:10 pm - 9:34 pm
COS
-
ORD
8h 24m
1 stop
Delta Logo
5:30 am - 12:33 pm
ORD
-
COS
8h 03m
1 stop
$224Delta
Sat, Mar 21 - Tue, Mar 24
United Airlines Logo
3:35 pm - 11:52 pm
HDN
-
ORD
7h 17m
1 stop
United Airlines Logo
8:50 am - 11:03 am
ORD
-
HDN
3h 13mnonstop
$226United Airlines
Mon, Jun 29 - Sat, Jul 4
United Airlines Logo
12:50 pm - 4:49 pm
MTJ
-
ORD
2h 59mnonstop
United Airlines Logo
9:00 am - 11:26 am
ORD
-
MTJ
3h 26mnonstop
$229United Airlines
Thu, Feb 26 - Sun, Mar 1
American Airlines Logo
12:30 pm - 4:10 pm
COS
-
ORD
2h 40mnonstop
American Airlines Logo
10:00 am - 12:00 pm
ORD
-
COS
3h 00mnonstop
$237American Airlines
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$84
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Denver to Chicago O'Hare Airport

Flights from Colorado to Chicago: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to Chicago 
Learn how KAYAK collects reviews and tips from users.
AdamFlew with Southwest
DEN
-
ORD
Oct 2024
Arriving T5 at ORD on Southwest is often a LONG walk, with no moving walkways going out, to baggage claim / pickup.
BrianFlew with United Airlines
DEN
-
ORD
Jan 2024
Big airport. Make sure you have enough time between flights for rest, eating, etc…

FAQs for booking flights from Colorado to Chicago

  • How does KAYAK find such low prices on flights from Colorado to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Chicago?

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

Everything you need to know for your flight to Chicago

Cabin class types available on flights to Colorado

Cabin classes available on flights to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Chicagofrom $625
Business Class flights to Chicagofrom $455
Premium Economy Class flights to Chicagofrom $711
Economy Class flights to Chicagofrom $114