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$369+ Cheap flights from Decatur, IL (DEC) to Dallas

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — DFW
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Decatur to Dallas

Cheapest flights from Decatur to Dallas
Explore the most affordable flight options available from Decatur to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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 12/97:08 pmDEC - DFW
1 stop18h 42mUnited Airlines
Sat 12/137:25 amDFW - DEC
2 stops10h 27mUnited Airlines
Deal found 11/24$431
This United Airlines deal was found by Cheapflights users on 11/25. 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 11/279:44 amDEC - DFW
2 stops9h 46mUnited Airlines
Sun 11/3012:20 pmDFW - DEC
1 stop5h 32mUnited Airlines
Deal found 11/25$689

Cheap flight deals from Decatur to Dallas

Discover tips and strategies to find the most affordable flight options for your journey from Decatur (DEC) to Dallas (A78). 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 26, 2025.

Round-trip from

$369
(United Airlines)
From Decatur Arpt to Dallas
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Decatur to Dallas 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 26, 2025.
Use the filters below to find and compare flights from Decatur to Dallas that are best for you.

Fly from

Decatur

Fly to

Dallas

Route

Depart

Return

Price

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Fri 1/9

9:49 am-8:40 pm

2 stops10h 51m

Dallas/Fort Worth

Sun 1/11

4:27 pm-9:05 am

1 stop16h 38m

$369

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Tue 12/9

7:08 pm-1:50 pm

1 stop18h 42m

Dallas/Fort Worth

Sat 12/13

7:25 am-5:52 pm

2 stops10h 27m

$431

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Sun 11/30

9:44 am-7:30 pm

2 stops9h 46m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Best time to book a flight from Decatur to Dallas

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

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

Currently, March is the cheapest month in which you can book a flight from Decatur, Illinois to Dallas (average of $246). Flying from Decatur, Illinois to Dallas in February is currently the most expensive (average of $354). 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 Decatur to Dallas. 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 from for flights from Decatur to Dallas?

    Located just 4.7 mi from the city center, Decatur Arpt is the airport most travelers will use when flying to Dallas from Decatur. Booking flights from Decatur Arpt (DEC) to Dallas should be relatively easy as there are 0 daily outbound flights to Dallas from 0 different airlines.

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

    There are many flights that can get you from Decatur, Illinois to Dallas in 10h 51m. Fly via United Airlines to get the fastest option. Decatur, Illinois and Dallas are separated by a distance of 660 mi.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Decatur, Illinois to Dallas (average of $246). Flying from Decatur, Illinois to Dallas in February is currently the most expensive (average of $354). 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

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