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Decatur

$226+ Cheap flights from Denver to Decatur, IL (DEN - 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DEC
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Denver to Decatur

Cheapest flights from Denver to Decatur
Explore the most affordable flight options available from Denver to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This United Airlines deal was found by Cheapflights users on 2/13. 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 2/289:36 am
DEN
-
DEC
1 stop7h 18m
United Airlines
Wed 3/47:15 pm
DEC
-
DEN
1 stop4h 51m
United Airlines
Deal found 2/13$274
This United Airlines deal was found by Cheapflights users on 2/13. 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 8/295:42 pm
DEN
-
DEC
1 stop14h 04m
United Airlines
Wed 9/29:42 am
DEC
-
DEN
1 stop5h 41m
United Airlines
Deal found 2/13$340
This United Airlines deal was found by Cheapflights users on 2/10. 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 5/25:45 pm
DEN
-
DEC
1 stop23h 13m
United Airlines
Wed 5/67:20 pm
DEC
-
DEN
1 stop5h 10m
United Airlines
Deal found 2/10$373
This United Airlines deal was found by Cheapflights users on 2/11. 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 2/278:30 pm
DEN
-
DEC
1 stop20h 24m
United Airlines
Tue 3/37:15 pm
DEC
-
DEN
1 stop4h 51m
United Airlines
Deal found 2/11$429
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Tue 2/241:30 pm
DEN
-
DEC
1 stop18h 22m
United Airlines
Thu 2/267:15 pm
DEC
-
DEN
1 stop14h 48m
United Airlines
Deal found 2/13$701
This United Airlines deal was found by Cheapflights users on 2/13. 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.
Tue 2/247:45 am
DEN
-
DEC
1 stop9h 09m
United Airlines
Wed 2/259:50 am
DEC
-
DEN
1 stop25h 43m
United Airlines
Deal found 2/13$716

Find flight deals from Denver to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Decatur (DEC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$274
(United Airlines)

One-way from

$226
(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 Denver Intl to Decatur Arpt
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One-way flight from Denver Intl to Decatur Arpt
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 February 14, 2026.
Use the filters below to find and compare flights from Denver to Decatur that are best for you.

Fly from

Denver

Fly to

Decatur

Route

Depart

Return

Price

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 2/28

9:36 am-5:54 pm

1 stop7h 18m

Decatur Arpt

Wed 3/4

7:15 pm-11:06 pm

1 stop4h 51m

$274

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 5/2

5:45 pm-5:58 pm

1 stop23h 13m

Decatur Arpt

Wed 5/6

7:20 pm-11:30 pm

1 stop5h 10m

$373

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 2/27

8:30 pm-5:54 pm

1 stop20h 24m

Decatur Arpt

Tue 3/3

7:15 pm-11:06 pm

1 stop4h 51m

$429

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Tue 2/24

1:30 pm-8:52 am

1 stop18h 22m

Decatur Arpt

Thu 2/26

7:15 pm-9:03 am

1 stop14h 48m

$701

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Tue 2/24

7:45 am-5:54 pm

1 stop9h 09m

Decatur Arpt

Wed 2/25

9:50 am-10:33 am

1 stop25h 43m

$716

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 5/16

6:00 am-5:58 pm

1 stop10h 58m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Compare providers for flights from Denver to Decatur

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Decatur in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Decatur, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Decatur, Illinois flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Decatur, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Denver 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 Denver to Decatur

What is the cheapest month to book a flight from Denver to Decatur, Illinois?

Currently, July is the cheapest month in which you can book a flight from Denver to Decatur, Illinois (average of $46). Flying from Denver to Decatur, Illinois in January is currently the most expensive (average of $252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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

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

    Airlines like United Airlines fly from Denver to Decatur, Illinois in about 7h 18m. The time it takes to get you to your destination can typically vary by up to . The distance from Denver to Decatur, Illinois is about 837 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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.

  • What is the cheapest month to book a flight from Denver to Decatur, Illinois?

    Currently, July is the cheapest month in which you can book a flight from Denver to Decatur, Illinois (average of $46). Flying from Denver to Decatur, Illinois in January is currently the most expensive (average of $252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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