HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$216+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DEC
Sep 15 — Sep 221
Tue 9/15
Tue 9/22
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 August 16, 2026.

This United Airlines deal was found by Cheapflights users on 8/14. 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 8/2911:15 am -
1 stop5h 44m
Wed 9/29:12 am -
1 stop6h 19m
Deal found 8/14$344
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/246:10 pm -
1 stop23h 00m
Wed 10/286:57 pm -
1 stop16h 29m
Deal found 8/13$392
This United Airlines deal was found by Cheapflights users on 8/12. 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 10/247:45 am -
1 stop9h 58m
Sun 10/256:57 pm -
1 stop5h 34m
Deal found 8/12$393
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 9/254:40 pm -
1 stop25h 03m
Mon 10/57:18 pm -
1 stop24h 02m
Deal found 8/13$414
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 12/114:45 pm -
1 stop24h 06m
Mon 12/146:55 pm -
1 stop6h 03m
Deal found 8/15$429
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/277:10 pm -
1 stop11h 27m
Mon 8/317:20 pm -
1 stop12h 19m
Deal found 8/12$518

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 August 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$344
(United Airlines)

One-way from

$216
(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 August 16, 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
Quickest round-trip

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Sat 8/29

11:15 am-5:59 pm

1 stop5h 44m

Decatur Arpt

Wed 9/2

9:12 am-2:31 pm

1 stop6h 19m

$344

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Sat 10/24

6:10 pm-6:10 pm

1 stop23h 00m

Decatur Arpt

Wed 10/28

6:57 pm-10:26 am

1 stop16h 29m

$392

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Fri 9/11

2:50 pm-6:44 pm

1 stop26h 54m

Decatur Arpt

Fri 9/18

7:20 pm-8:47 am

1 stop14h 27m

$414

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Fri 9/25

4:40 pm-6:43 pm

1 stop25h 03m

Decatur Arpt

Mon 10/5

7:18 pm-6:20 pm

1 stop24h 02m

$414

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Fri 12/11

4:45 pm-5:51 pm

1 stop24h 06m

Decatur Arpt

Mon 12/14

6:55 pm-11:58 pm

1 stop6h 03m

$429

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Fri 10/2

4:40 pm-6:43 pm

1 stop25h 03m

Decatur Arpt

Wed 10/7

7:18 pm-2:21 pm

2 stops20h 03m

$498
Cheapest one-way

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Tue 9/1

2:50 pm-7:09 am

1 stop15h 19m

$216

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Sun 9/27

6:00 am-8:35 am

1 stop25h 35m

$271
Quickest one-way

DenverDecatur

DEN Denver Intl - DEC Decatur Arpt

DENDEC

Denver Intl

Thu 9/24

9:00 pm-8:35 am

2 stops10h 35m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Sorted by cheapest first

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 5h 44m. 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.
LaGuardia to O'Hare Intl flights
Newark to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
Dallas/Fort Worth to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Baltimore to O'Hare Intl flights
Boston to O'Hare Intl flights
Hobby to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
Seattle to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Newark to Midway flights
Ontario to O'Hare Intl flights
Denver to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
Sky Harbor Intl to O'Hare Intl flights
LaGuardia to Midway flights
Dulles Intl to Midway flights
Tampa to O'Hare Intl flights
Miami to O'Hare Intl flights
Atlanta to Midway flights
Orlando to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Austin to O'Hare Intl flights
Minneapolis to O'Hare Intl flights
Baltimore to Midway flights
Minneapolis to Midway flights
Santa Ana to O'Hare Intl flights
Portland to O'Hare Intl flights
San Diego to O'Hare Intl flights
Los Angeles to Midway flights
Raleigh to O'Hare Intl flights
Seattle to Midway flights
Hobby to Midway flights
Newark to St. Louis flights
San Jose to O'Hare Intl flights
Boston to Midway flights
Philadelphia to Midway flights
Charlotte to O'Hare Intl flights
San Francisco to Midway flights
Denver to Midway flights
Cleveland to O'Hare Intl flights
Nashville to O'Hare Intl flights
Las Vegas to O'Hare Intl flights
George Bush Intcntl to Midway 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.