How does KAYAK find such low prices on flights from Illinois to Denver?

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 Illinois to Denver.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Illinois 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 Illinois to Denver?

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 Denver with an airline and back to Illinois with another airline.

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

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 Denver from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$96 CHEAP FLIGHTS from Illinois to Denver

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Cheap Flights from Illinois to Denver

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Denver

Fri, Dec 11 - Tue, Dec 15

4:08 pm - 10:31 pmORD Chicago O'Hare Intl-DEN Denver Intl

7h 23m1 stop Houston George Bush Intcntl

9:26 pm - 12:54 amDEN Denver Intl-ORD Chicago O'Hare Intl

2h 28mnonstop

$157Frontier

Fri, Dec 11 - Sat, Dec 12

4:08 pm - 10:31 pmORD Chicago O'Hare Intl-DEN Denver Intl

7h 23m1 stop Houston George Bush Intcntl

9:26 pm - 12:54 amDEN Denver Intl-ORD Chicago O'Hare Intl

2h 28mnonstop

$157Frontier

Thu, Dec 17 - Wed, Dec 30

11:45 am - 4:01 pmORD Chicago O'Hare Intl-DEN Denver Intl

5h 16m1 stop Minneapolis St Paul

8:59 pm - 12:26 amDEN Denver Intl-ORD Chicago O'Hare Intl

2h 27mnonstop

$192Multiple Airlines

Sat, Dec 5 - Sat, Dec 12

8:07 pm - 9:59 pmORD Chicago O'Hare Intl-DEN Denver Intl

2h 52mnonstop

3:50 pm - 7:28 pmDEN Denver Intl-ORD Chicago O'Hare Intl

2h 38mnonstop

$199United Airlines

Wed, Dec 9 - Wed, Dec 16

8:05 am - 10:00 amMDW Chicago Midway-DEN Denver Intl

2h 55mnonstop

6:05 pm - 9:30 pmDEN Denver Intl-MDW Chicago Midway

2h 25mnonstop

$199Southwest

Wed, Dec 9 - Wed, Dec 16

6:05 am - 8:00 amMDW Chicago Midway-DEN Denver Intl

2h 55mnonstop

6:05 pm - 9:30 pmDEN Denver Intl-MDW Chicago Midway

2h 25mnonstop

$199Southwest

Thu, Nov 26 - Tue, Dec 1

2:30 pm - 4:23 pmORD Chicago O'Hare Intl-DEN Denver Intl

2h 53mnonstop

3:50 pm - 7:28 pmDEN Denver Intl-ORD Chicago O'Hare Intl

2h 38mnonstop

$200United Airlines

Tue, Nov 24 - Tue, Dec 1

10:35 pm - 12:31 amORD Chicago O'Hare Intl-DEN Denver Intl

2h 56mnonstop

6:11 pm - 9:56 pmDEN Denver Intl-ORD Chicago O'Hare Intl

2h 45mnonstop

$200American Airlines

Wed, Dec 2 - Thu, Dec 3

10:40 pm - 12:30 amORD Chicago O'Hare Intl-DEN Denver Intl

2h 50mnonstop

2:35 pm - 6:14 pmDEN Denver Intl-ORD Chicago O'Hare Intl

2h 39mnonstop

$200American Airlines

Fri, Nov 20 - Mon, Nov 23

11:15 am - 6:39 pmORD Chicago O'Hare Intl-DEN Denver Intl

8h 24m1 stop Minneapolis St Paul

9:26 pm - 12:53 amDEN Denver Intl-ORD Chicago O'Hare Intl

2h 27mnonstop

$211Multiple Airlines

Recent last minute flight deals from Illinois to Denver

Wed, Nov 4 - Tue, Nov 10

8:59 am - 3:53 pmORD Chicago O'Hare Intl-DEN Denver Intl

7h 54m1 stop Dallas/Fort Worth

8:55 pm - 12:21 amDEN Denver Intl-ORD Chicago O'Hare Intl

2h 26mnonstop

$167Frontier

Tue, Nov 3 - Tue, Nov 10

4:36 pm - 9:42 pmORD Chicago O'Hare Intl-DEN Denver Intl

6h 06m1 stop Dallas/Fort Worth

8:55 pm - 12:21 amDEN Denver Intl-ORD Chicago O'Hare Intl

2h 26mnonstop

$167Frontier

Sat, Oct 31 - Mon, Dec 7

9:35 am - 11:15 amMDW Chicago Midway-DEN Denver Intl

2h 40mnonstop

7:05 am - 10:30 amDEN Denver Intl-MDW Chicago Midway

2h 25mnonstop

$390Southwest

Wed, Nov 4 - Wed, Nov 11

12:15 pm - 8:13 amORD Chicago O'Hare Intl-DEN Denver Intl

20h 58m3 stops Quincy Regional Nashville Intl Orlando

5:17 pm - 7:59 pmDEN Denver Intl-ORD Chicago O'Hare Intl

25h 42m1 stop Houston George Bush Intcntl

$391Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

6:30 am - 8:26 amORD Chicago O'Hare Intl-DEN Denver Intl

2h 56mnonstop

10:00 am - 10:41 amDEN Denver Intl-ORD Chicago O'Hare Intl

23h 41m1 stop Minneapolis St Paul

$394Multiple Airlines

Sat, Oct 31 - Mon, Dec 7

9:35 am - 11:15 amMDW Chicago Midway-DEN Denver Intl

2h 40mnonstop

2:25 pm - 7:40 pmDEN Denver Intl-MDW Chicago Midway

4h 15m1 stop Cincinnati Cinci./N. Kentucky

$396Southwest

Tue, Nov 3 - Tue, Nov 10

8:46 am - 10:28 amMLI Moline Quad-City-DEN Denver Intl

2h 42mnonstop

7:45 am - 1:55 pmDEN Denver Intl-MLI Moline Quad-City

5h 10m1 stop Chicago O'Hare Intl

$424United Airlines

Tue, Nov 3 - Tue, Nov 10

11:20 am - 5:20 pmMLI Moline Quad-City-DEN Denver Intl

7h 00m1 stop Chicago O'Hare Intl

9:11 am - 4:28 pmDEN Denver Intl-MLI Moline Quad-City

6h 17m1 stop Chicago O'Hare Intl

$429American Airlines

Tue, Nov 3 - Tue, Nov 10

8:46 am - 10:28 amMLI Moline Quad-City-DEN Denver Intl

2h 42mnonstop

5:50 pm - 9:12 pmDEN Denver Intl-MLI Moline Quad-City

2h 22mnonstop

$446United Airlines

Sat, Oct 31 - Tue, Nov 10

6:00 am - 11:37 amSPI Springfield Capital-DEN Denver Intl

6h 37m1 stop Chicago O'Hare Intl

6:50 am - 2:50 pmDEN Denver Intl-SPI Springfield Capital

7h 00m1 stop Chicago O'Hare Intl

$527American Airlines

Useful Info

Low season	April
High season	July
Cheapest flight	$96

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly with an average 19% increase in price.

Flight from Chicago Midway Airport to Denver

How does KAYAK find such low prices on flights from Illinois to Denver?
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 Illinois to Denver.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Denver?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Illinois 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 Illinois to Denver?
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 Denver with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Denver?
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 Denver from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Westminster

Lakewood

Dillon

Broomfield

Englewood

Greenwood Village

Lone Tree

Central City

Limon

Brighton

Wheat Ridge

Fort Morgan

Evergreen

Erie

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DEN

$96 Find Cheap Flights from Illinois to Denver - Compare and Save

Cheap Flights from Illinois to Denver

Recent round-trip flight deals from Illinois to Denver

Recent one-way flight deals from Illinois to Denver

Recent last minute flight deals from Illinois to Denver

Recent direct flight deals from Illinois to Denver

Good to know

Low season

High season

Cheapest flight

FAQs for booking flights from Illinois to Denver

Traveling to a place near Denver?

More options for your flight to Denver

Complete your trip to Denver with a hotel stay or car rental

Information on the airport you'll fly into in Denver

Cabin class types available on flights to Illinois

Find direct flights for Denver

Flights from domestic origins to Denver

Flights to other popular destinations

Find deals for your return flight