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$258+ Cheap flights from Decatur, IL (DEC) to Dallas

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — DFW
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$324
(United Airlines)

One-way from

$258
(United Airlines)
From Decatur Arpt to Dallas
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One-way flight from Decatur Arpt to Dallas
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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 September 17, 2025.

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 10/89:38 amDEC - DFW
2 stops11h 51mUnited Airlines
Wed 10/1512:21 pmDFW - DEC
1 stop5h 43mUnited Airlines
Deal found 9/15$324
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/29:38 amDEC - DFW
2 stops9h 59mUnited Airlines
Mon 10/612:21 pmDFW - DEC
1 stop5h 43mUnited Airlines
Deal found 9/17$334
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 9/309:38 amDEC - DFW
1 stop5h 44mUnited Airlines
Sat 10/44:18 pmDFW - DEC
1 stop16h 33mUnited Airlines
Deal found 9/15$385
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/219:30 amDEC - DFW
2 stops11h 11mUnited Airlines
Fri 10/247:27 pmDFW - DEC
1 stop13h 24mUnited Airlines
Deal found 9/16$390
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 10/309:44 amDEC - DFW
1 stop5h 48mUnited Airlines
Thu 11/65:15 amDFW - DEC
2 stops12h 37mUnited Airlines
Deal found 9/15$401
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/19:38 amDEC - DFW
1 stop5h 44mUnited Airlines
Sun 10/57:00 amDFW - DEC
1 stop11h 04mUnited Airlines
Deal found 9/16$409
This United Airlines deal was found by Cheapflights users on 9/17. 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 12/87:08 pmDEC - DFW
1 stop18h 42mUnited Airlines
Wed 12/105:15 amDFW - DEC
2 stops12h 37mUnited Airlines
Deal found 9/17$416

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 September 17, 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

Wed 10/8

9:38 am-9:29 pm

2 stops11h 51m

Dallas/Fort Worth

Wed 10/15

12:21 pm-6:04 pm

1 stop5h 43m

$324

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Thu 10/2

9:38 am-3:22 pm

1 stop5h 44m

Dallas/Fort Worth

Mon 10/6

10:18 am-6:04 pm

1 stop7h 46m

$324

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Tue 9/30

9:38 am-3:22 pm

1 stop5h 44m

Dallas/Fort Worth

Sat 10/4

4:18 pm-8:51 am

1 stop16h 33m

$385

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Tue 10/21

9:30 am-8:41 pm

2 stops11h 11m

Dallas/Fort Worth

Fri 10/24

7:27 pm-8:51 am

1 stop13h 24m

$390

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Thu 10/30

9:44 am-3:32 pm

1 stop5h 48m

Dallas/Fort Worth

Thu 11/6

5:15 am-5:52 pm

2 stops12h 37m

$401

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Thu 10/9

9:38 am-6:23 pm

1 stop8h 45m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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, August is the cheapest month in which you can book a flight from Decatur, Illinois to Dallas (average of $216). Flying from Decatur, Illinois to Dallas in March is currently the most expensive (average of $295). 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 11h 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, August is the cheapest month in which you can book a flight from Decatur, Illinois to Dallas (average of $216). Flying from Decatur, Illinois to Dallas in March is currently the most expensive (average of $295). 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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