HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$252+ Cheap flights from Colorado to Decatur, IL (DEC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DEC
Jul 5 — Jul 121
Sun 7/5
Sun 7/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Decatur with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to Decatur

Cheapest flights from Colorado to Decatur
Explore the most affordable flight options available from Colorado to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 5, 2026.

This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:05 pm
DEN
-
DEC
1 stop10h 52m
United Airlines
Wed 7/86:45 pm
DEC
-
DEN
1 stop6h 03m
United Airlines
Deal found 6/3$414
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:45 am
DEN
-
DEC
1 stop9h 06m
United Airlines
Sat 10/246:55 pm
DEC
-
DEN
1 stop5h 59m
United Airlines
Deal found 6/1$430
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:40 pm
DEN
-
DEC
1 stop12h 17m
United Airlines
Fri 7/106:45 pm
DEC
-
DEN
1 stop6h 03m
United Airlines
Deal found 6/4$468
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:00 pm
DEN
-
DEC
1 stop22h 56m
United Airlines
Thu 7/236:45 pm
DEC
-
DEN
1 stop12h 57m
United Airlines
Deal found 6/3$524
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/207:10 pm
DEN
-
DEC
1 stop21h 46m
United Airlines
Wed 6/246:45 pm
DEC
-
DEN
1 stop6h 07m
United Airlines
Deal found 6/4$529
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:38 pm
DEN
-
DEC
2 stops23h 18m
United Airlines
Sat 7/186:45 pm
DEC
-
DEN
1 stop6h 04m
United Airlines
Deal found 6/4$553

Find flight deals from Colorado to Decatur

Keep the following information in mind while searching for Colorado to Decatur flight deals. Data was last updated June 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$414
(United Airlines)

One-way from

$252
(United Airlines)
Provider with most accurate pricing for Denver Intl-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Decatur Arpt flights.
Search Deals
From Colorado to Decatur Arpt
Search Deals
One-way flight from Colorado to Decatur Arpt
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Decatur 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, Cheapflights users made 2,558,603 searches. Data last updated June 5, 2026.
Use the filters below to find and compare flights from Colorado to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 7/15

9:05 pm-5:56 pm

1 stop19h 51m

Decatur Arpt

Sat 7/18

6:45 pm-11:49 pm

1 stop6h 04m

$430

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Tue 10/20

7:10 pm-5:51 pm

1 stop21h 41m

Decatur Arpt

Sat 10/24

6:55 pm-11:54 pm

1 stop5h 59m

$430
Quickest round-trip

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 7/2

7:40 pm-8:57 am

1 stop12h 17m

Decatur Arpt

Fri 7/10

6:45 pm-11:48 pm

1 stop6h 03m

$468

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Mon 7/20

6:00 pm-5:56 pm

1 stop22h 56m

Decatur Arpt

Thu 7/23

6:45 pm-6:42 am

1 stop12h 57m

$524

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 6/20

7:10 pm-5:56 pm

1 stop21h 46m

Decatur Arpt

Wed 6/24

6:45 pm-11:52 pm

1 stop6h 07m

$529

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 7/1

8:35 pm-5:56 pm

2 stops20h 21m

Decatur Arpt

Wed 7/8

6:45 pm-11:48 pm

1 stop6h 03m

$532
Cheapest one-way

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 8/6

9:05 pm-8:57 am

1 stop10h 52m

$252

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 8/15

2:50 pm-5:59 pm

1 stop26h 09m

$252

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 7/2

9:05 pm-8:57 am

1 stop10h 52m

$296

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 7/3

7:40 am-5:56 pm

2 stops9h 16m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Colorado to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Decatur
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Decatur from Colorado?

    If you book a flight to Decatur from Colorado, you will be flying to Decatur Arpt, which is the city’s only airport. Decatur Arpt (DEC) is located 4.7 mi from the center of Decatur.

  • How long is the flight from Colorado to Decatur, Illinois?

    United Airlines can get you from Colorado to Decatur, Illinois in just under 10h 52m. Your travel time can differ by up to . The distance from Colorado to Decatur, Illinois is about 837 mi.

  • Can I find deals for flights from Colorado to Decatur that include hotel bookings?

    Yes. In addition to deals on Colorado to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Decatur.

  • Can I find deals for business class flights from Colorado to Decatur?

    Yes. Cheapflights offers flight deals from Colorado to Decatur by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Decatur

See prices for flight routes from nearby airports that may be better suited for you.
Newark to O'Hare Intl flights
Dallas/Fort Worth to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
Hobby to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Seattle to O'Hare Intl flights
Baltimore to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Newark to Midway flights
Ontario to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Denver to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
George Bush Intcntl to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Boston to O'Hare Intl flights
Orlando to O'Hare Intl flights
Tampa to O'Hare Intl flights
Sky Harbor Intl to O'Hare Intl flights
Dulles Intl to Midway flights
San Francisco to Midway flights
Los Angeles to Midway flights
Raleigh to O'Hare Intl flights
Austin to O'Hare Intl flights
LaGuardia to Midway flights
Fort Lauderdale to O'Hare Intl flights
San Diego to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Miami to O'Hare Intl flights
Charlotte to O'Hare Intl flights
Atlanta to Midway flights
John F Kennedy Intl to Midway flights
Hobby to Midway flights
San Jose to O'Hare Intl flights
Baltimore to Midway flights
Minneapolis to Midway flights
Minneapolis to O'Hare Intl flights
Burbank to O'Hare Intl flights
George Bush Intcntl to Midway flights
Portland to O'Hare Intl flights
Reagan-National to Midway flights
LaGuardia to St. Louis flights
Las Vegas to O'Hare Intl flights
Newark to St. Louis flights
Salt Lake City to O'Hare Intl flights
Denver to Midway flights
Oakland to O'Hare Intl flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.