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$359+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — DFW
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheap 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 March 18, 2026.

This United Airlines deal was found by Cheapflights users on 3/12. 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 4/299:52 am
DEC
-
DFW
1 stop6h 17m
United Airlines
Sat 5/24:25 pm
DFW
-
DEC
1 stop25h 33m
United Airlines
Deal found 3/12$359
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/257:37 pm
DEC
-
DFW
1 stop14h 17m
United Airlines
Sat 5/27:54 pm
DFW
-
DEC
1 stop13h 04m
United Airlines
Deal found 3/12$399
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/39:52 am
DEC
-
DFW
1 stop6h 17m
United Airlines
Mon 4/65:25 pm
DFW
-
DEC
2 stops19h 29m
United Airlines
Deal found 3/12$441
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/257:37 pm
DEC
-
DFW
1 stop14h 17m
United Airlines
Fri 5/17:54 pm
DFW
-
DEC
1 stop17h 00m
United Airlines
Deal found 3/12$454

Find 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 March 18, 2026.

Round-trip from

$359
(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 March 18, 2026.
Use the filters below to find and compare flights from Decatur to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Wed 4/29

9:52 am-4:09 pm

1 stop6h 17m

Dallas/Fort Worth

Sat 5/2

4:25 pm-5:58 pm

1 stop25h 33m

$359
Quickest round-trip

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Sat 4/25

7:37 pm-9:54 am

1 stop14h 17m

Dallas/Fort Worth

Sat 5/2

7:54 pm-8:58 am

1 stop13h 04m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Sorted by cheapest first

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, May is the cheapest month in which you can book a flight from Decatur, Illinois to Dallas (average of $251). Flying from Decatur, Illinois to Dallas in October is currently the most expensive (average of $319). 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.

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated March 18, 2026.
Read reviews from past customers who have flown United Airlines from Decatur to Dallas. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,435 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
United Airlines
7.4
Good
9,435 reviews
United Airlines
7.4
Good
9,435 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

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 1 airline.

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

    There are many flights that can get you from Decatur, Illinois to Dallas in 6h 17m. Fly via United Airlines to get the fastest option. Decatur, Illinois and Dallas are separated by a distance of 660 mi.

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

    Our cheapest airline available from Decatur, Illinois to Dallas is United Airlines. Our recent data shows that you can find tickets from as low as $244 on this airline.

  • 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, May is the cheapest month in which you can book a flight from Decatur, Illinois to Dallas (average of $251). Flying from Decatur, Illinois to Dallas in October is currently the most expensive (average of $319). 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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Alternative routes for Decatur to Dallas

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Top airline flying from Decatur to Dallas

Discover the top airline that operate flights from Decatur to Dallas. 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 March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$244Average$314FlexibilityNo cancel feeOn-time69%

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