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Decatur

$247+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DEC
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Colorado to Decatur

Keep the following information in mind while searching for Colorado to Decatur flight deals. Data was last updated September 15, 2025.

Round-trip from

$344
(United Airlines)

One-way from

$247
(United Airlines)
From Colorado to Decatur Arpt
Search Deals
One-way flight from Colorado to Decatur Arpt
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Find 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 9/2611:15 amDEN - DEC
1 stop5h 49mUnited Airlines
Tue 9/309:38 amDEC - DEN
1 stop7h 25mUnited Airlines
Deal found 9/12$330
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 11/67:46 amDEN - DEC
1 stop9h 06mUnited Airlines
Mon 11/107:08 pmDEC - DEN
1 stop5h 07mUnited Airlines
Deal found 9/15$344
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 9/1911:18 amDEN - DEC
1 stop5h 41mUnited Airlines
Tue 9/239:42 amDEC - DEN
1 stop6h 57mUnited Airlines
Deal found 9/14$382
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 12/168:20 pmDEN - DEC
2 stops20h 32mUnited Airlines
Fri 1/27:09 pmDEC - DEN
1 stop5h 29mUnited Airlines
Deal found 9/15$386
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 12/175:59 pmDEN - DEC
2 stops14h 06mUnited Airlines
Fri 1/27:09 pmDEC - DEN
1 stop5h 29mUnited Airlines
Deal found 9/15$389
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/177:07 pmDEN - DEC
1 stop12h 44mUnited Airlines
Sun 10/199:38 amDEC - DEN
1 stop22h 04mUnited Airlines
Deal found 9/15$394
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/2411:15 amDEN - DEC
1 stop5h 49mUnited Airlines
Tue 10/287:08 pmDEC - DEN
1 stop5h 07mUnited Airlines
Deal found 9/14$395
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/307:07 pmDEN - DEC
1 stop21h 57mUnited Airlines
Sat 10/49:38 amDEC - DEN
1 stop7h 57mUnited Airlines
Deal found 9/15$401
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/11:25 pmDEN - DEC
1 stop19h 23mUnited Airlines
Sun 11/27:08 pmDEC - DEN
1 stop18h 22mUnited Airlines
Deal found 9/13$425

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 September 15, 2025.
Use the filters below to find and compare flights from Colorado to Decatur that are best for you.

Fly from

Colorado

Fly to

Decatur

Route

Depart

Return

Price

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 2/28

8:30 pm-5:56 pm

1 stop20h 26m

Decatur Arpt

Tue 3/3

7:09 pm-10:56 pm

1 stop4h 47m

$329

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 9/26

11:15 am-6:04 pm

1 stop5h 49m

Decatur Arpt

Tue 9/30

9:38 am-4:03 pm

1 stop7h 25m

$330

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Tue 12/16

3:22 pm-8:48 am

1 stop16h 26m

Decatur Arpt

Fri 1/2

7:09 pm-11:38 pm

1 stop5h 29m

$344

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 12/18

8:26 pm-5:59 pm

1 stop20h 33m

Decatur Arpt

Fri 1/2

7:09 pm-11:38 pm

1 stop5h 29m

$344

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Wed 12/17

5:35 pm-9:05 am

1 stop14h 30m

Decatur Arpt

Fri 1/2

7:09 pm-11:38 pm

1 stop5h 29m

$344

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 10/17

8:28 pm-8:51 am

1 stop11h 23m

Decatur Arpt

Sun 10/19

9:30 am-6:42 am

1 stop22h 12m

$394

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 10/24

11:15 am-6:04 pm

1 stop5h 49m

Decatur Arpt

Tue 10/28

7:08 pm-11:15 pm

1 stop5h 07m

$395

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Mon 10/6

7:07 pm-8:51 am

1 stop12h 44m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 20h 26m. 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

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