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Decatur

$231+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — DEC
Oct 31 — Nov 71
Fri 10/31
Fri 11/7
1 adult, Economy
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Cheap 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 October 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$338
(United Airlines)

One-way from

$231
(United Airlines)
Provider with most accurate pricing for Denver Intl-Decatur Arpt flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Decatur Arpt flights.
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From Denver Intl to Decatur Arpt
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One-way flight from Denver Intl to Decatur Arpt
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Find 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 October 1, 2025.

This United Airlines deal was found by Cheapflights users on 9/28. 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 10/238:28 pmDEN - DEC
1 stop11h 23mUnited Airlines
Sat 10/259:38 amDEC - DEN
1 stop7h 57mUnited Airlines
Deal found 9/28$364
This United Airlines deal was found by Cheapflights users on 9/30. 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 11/77:21 pmDEN - DEC
1 stop21h 31mUnited Airlines
Sun 11/97:08 pmDEC - DEN
1 stop25h 56mUnited Airlines
Deal found 9/30$398
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/247:07 pmDEN - DEC
1 stop12h 44mUnited Airlines
Sun 10/267:08 pmDEC - DEN
1 stop25h 56mUnited Airlines
Deal found 9/29$402
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/118:28 pmDEN - DEC
1 stop20h 36mUnited Airlines
Tue 10/149:38 amDEC - DEN
1 stop7h 57mUnited Airlines
Deal found 9/29$439
This United Airlines deal was found by Cheapflights users on 9/30. 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 11/146:09 pmDEN - DEC
2 stops22h 43mUnited Airlines
Sun 11/167:08 pmDEC - DEN
1 stop27h 41mUnited Airlines
Deal found 9/30$451
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/144:45 pmDEN - DEC
1 stop24h 19mUnited Airlines
Sat 10/189:38 amDEC - DEN
1 stop22h 04mUnited Airlines
Deal found 9/29$470
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/176:00 amDEN - DEC
1 stop25h 51mUnited Airlines
Sun 10/196:55 pmDEC - DEN
1 stop28h 05mUnited Airlines
Deal found 9/29$474

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 October 1, 2025.
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

Thu 10/23

8:28 pm-8:51 am

1 stop11h 23m

Decatur Arpt

Sat 10/25

9:38 am-4:35 pm

1 stop7h 57m

$364

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 11/7

7:21 pm-5:52 pm

1 stop21h 31m

Decatur Arpt

Sun 11/9

7:08 pm-8:04 pm

1 stop25h 56m

$398

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 10/24

7:07 pm-8:51 am

1 stop12h 44m

Decatur Arpt

Sun 10/26

7:08 pm-8:04 pm

1 stop25h 56m

$402

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Sat 10/11

8:28 pm-6:04 pm

1 stop20h 36m

Decatur Arpt

Tue 10/14

9:38 am-4:35 pm

1 stop7h 57m

$439

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 11/14

6:09 pm-5:52 pm

2 stops22h 43m

Decatur Arpt

Sun 11/16

7:08 pm-9:49 pm

1 stop27h 41m

$451

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 10/17

6:00 am-8:51 am

1 stop25h 51m

Decatur Arpt

Sun 10/19

6:55 pm-10:00 pm

1 stop28h 05m

$474

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 12/26

7:26 pm-5:59 pm

1 stop21h 33m

Decatur Arpt

Wed 12/31

9:44 am-10:06 pm

1 stop13h 22m

$490

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Fri 10/24

8:28 pm-8:51 am

1 stop11h 23m

$231

DenverDecatur

DEN - DEC

DENDEC

Denver Intl

Thu 10/9

9:36 am-6:04 pm

1 stop7h 28m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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.

Reviews of airlines servicing Decatur

Get insights into the airlines that provide service to Decatur. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Decatur. Reviews last updated October 1, 2025.
Peruse reviews from past customers who have flown with United Airlines from Denver to Decatur to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 11h 23m. 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.

  • What is the cheapest airline to fly from Denver to Decatur, Illinois round-trip?

    Cheapflights users have booked flights from Denver to Decatur, Illinois round-trip from $418.

  • 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.

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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Alternative routes for Denver to Decatur

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Top airline flying from Denver to Decatur

Discover the top airline that operate flights from Denver to Decatur. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$418Average$1,240FlexibilityNo cancel feeOn-time69%

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