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Decatur

$227+ Cheap flights from Dallas 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — DEC
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Dallas to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) 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 November 6, 2025.

Round-trip from

$342
(United Airlines)

One-way from

$227
(United Airlines)
From Dallas to Decatur Arpt
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One-way flight from Dallas to Decatur Arpt
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Find flight deals from Dallas to Decatur

Cheapest flights from Dallas to Decatur
Explore the most affordable flight options available from Dallas to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This United Airlines deal was found by Cheapflights users on 11/5. 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 12/127:17 pmDFW - DEC
1 stop22h 35mUnited Airlines
Mon 12/159:49 amDEC - DFW
2 stops14h 05mUnited Airlines
Deal found 11/5$342
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 11/2512:20 pmDFW - DEC
1 stop5h 32mUnited Airlines
Mon 12/17:08 pmDEC - DFW
1 stop27h 37mUnited Airlines
Deal found 11/4$355
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/2612:20 pmDFW - DEC
1 stop5h 32mUnited Airlines
Mon 12/19:44 amDEC - DFW
1 stop5h 48mUnited Airlines
Deal found 11/4$359
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/277:00 amDFW - DEC
1 stop25h 48mUnited Airlines
Mon 12/19:44 amDEC - DFW
1 stop5h 48mUnited Airlines
Deal found 11/4$369
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/412:25 pmDFW - DEC
1 stop5h 27mUnited Airlines
Wed 9/306:55 pmDEC - DFW
1 stop20h 27mUnited Airlines
Deal found 11/3$378
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/87:00 amDFW - DEC
2 stops10h 52mUnited Airlines
Wed 9/306:55 pmDEC - DFW
2 stops16h 41mUnited Airlines
Deal found 11/3$393
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Fri 11/712:20 pmDFW - DEC
1 stop5h 32mUnited Airlines
Sun 11/99:44 amDEC - DFW
2 stops8h 39mUnited Airlines
Deal found 11/4$404

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 November 6, 2025.
Use the filters below to find and compare flights from Dallas to Decatur that are best for you.

Fly from

Dallas

Fly to

Decatur

Route

Depart

Return

Price

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Fri 12/12

7:17 pm-5:52 pm

1 stop22h 35m

Decatur Arpt

Mon 12/15

9:49 am-11:54 pm

2 stops14h 05m

$342

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Tue 11/25

12:20 pm-5:52 pm

1 stop5h 32m

Decatur Arpt

Mon 12/1

7:08 pm-10:45 pm

1 stop27h 37m

$355

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Mon 12/8

12:25 pm-5:52 pm

1 stop5h 27m

Decatur Arpt

Thu 10/1

9:42 am-3:22 pm

1 stop5h 40m

$359

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Wed 11/26

12:20 pm-5:52 pm

1 stop5h 32m

Decatur Arpt

Mon 12/1

9:44 am-3:32 pm

1 stop5h 48m

$359

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Thu 11/27

7:00 am-8:48 am

1 stop25h 48m

Decatur Arpt

Mon 12/1

9:44 am-3:32 pm

1 stop5h 48m

$369

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Tue 4/28

12:21 pm-5:51 pm

1 stop5h 30m

Decatur Arpt

Sat 5/2

6:55 pm-11:48 am

1 stop16h 53m

$378

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Mon 12/8

12:25 pm-5:52 pm

1 stop5h 27m

Decatur Arpt

Wed 9/30

6:55 pm-3:22 pm

1 stop20h 27m

$378

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Sat 12/6

9:55 am-5:52 pm

2 stops7h 57m

Decatur Arpt

Wed 9/30

6:55 pm-10:04 am

1 stop15h 09m

$388

DallasDecatur

DFW - DEC

DFWDEC

Dallas/Fort Worth

Fri 12/5

7:17 pm-5:52 pm

1 stop22h 35m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Best time to book a flight from Dallas to Decatur

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

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

Currently, May is the cheapest month in which you can book a flight from Dallas to Decatur, Illinois (average of $251). Flying from Dallas to Decatur, Illinois in February is currently the most expensive (average of $375). 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 Dallas 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 Dallas?

    Most people fly into Decatur Arpt (DEC) if they book a flight to Decatur from Dallas. On average, Decatur Arpt has 0 inbound flights from Dallas per day from 0 airlines. Decatur Arpt is conveniently located just 4.7 mi from Decatur’s city center.

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

    United Airlines can get you from Dallas to Decatur, Illinois in just under 22h 35m. Your travel time can differ by up to . The distance between Dallas and Decatur, Illinois is about 660 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dallas 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 Dallas to Decatur, Illinois?

    Currently, May is the cheapest month in which you can book a flight from Dallas to Decatur, Illinois (average of $251). Flying from Dallas to Decatur, Illinois in February is currently the most expensive (average of $375). 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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