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$221+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — DFW
Feb 4 — Feb 111
Wed 2/4
Wed 2/11
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 January 5, 2026.

This United Airlines deal was found by Cheapflights users on 1/3. 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 2/59:49 amDEC - DFW
1 stop5h 42mUnited Airlines
Sun 2/810:25 amDFW - DEC
1 stop7h 36mUnited Airlines
Deal found 1/3$335
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Sun 2/19:49 amDEC - DFW
2 stops10h 51mUnited Airlines
Sat 2/71:18 pmDFW - DEC
1 stop4h 43mUnited Airlines
Deal found 1/3$344
This United Airlines deal was found by Cheapflights users on 1/4. 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 1/229:49 amDEC - DFW
1 stop5h 42mUnited Airlines
Sun 1/256:45 amDFW - DEC
2 stops11h 16mUnited Airlines
Deal found 1/4$349
This United Airlines deal was found by Cheapflights users on 1/4. 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 1/219:49 amDEC - DFW
2 stops10h 56mUnited Airlines
Sun 1/256:45 amDFW - DEC
2 stops11h 16mUnited Airlines
Deal found 1/4$355
This United Airlines deal was found by Cheapflights users on 1/3. 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 2/27:09 pmDEC - DFW
1 stop27h 50mUnited Airlines
Tue 2/101:18 pmDFW - DEC
1 stop4h 43mUnited Airlines
Deal found 1/3$366
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Tue 4/147:20 pmDEC - DFW
1 stop27h 39mUnited Airlines
Wed 4/2212:26 pmDFW - DEC
1 stop5h 36mUnited Airlines
Deal found 1/3$372
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Wed 2/47:09 pmDEC - DFW
1 stop14h 54mUnited Airlines
Mon 2/91:18 pmDFW - DEC
1 stop4h 43mUnited Airlines
Deal found 1/3$375
This United Airlines deal was found by Cheapflights users on 1/3. 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 2/29:49 amDEC - DFW
1 stop26h 21mUnited Airlines
Sat 2/71:18 pmDFW - DEC
1 stop4h 43mUnited Airlines
Deal found 1/3$382
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Wed 2/47:09 pmDEC - DFW
1 stop14h 54mUnited Airlines
Tue 2/109:35 amDFW - DEC
2 stops8h 26mUnited Airlines
Deal found 1/3$384
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Fri 1/169:49 amDEC - DFW
2 stops14h 10mUnited Airlines
Tue 1/209:00 amDFW - DEC
2 stops9h 01mUnited Airlines
Deal found 1/3$390

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 January 5, 2026.

Round-trip from

$335
(United Airlines)

One-way from

$221
(United Airlines)
From Decatur Arpt to Dallas
Search Deals
One-way flight from Decatur Arpt to Dallas
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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 January 5, 2026.
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

Thu 2/5

9:49 am-3:31 pm

1 stop5h 42m

Dallas/Fort Worth

Tue 2/10

1:18 pm-6:01 pm

1 stop4h 43m

$335

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Fri 2/6

9:49 am-3:31 pm

1 stop5h 42m

Dallas/Fort Worth

Tue 2/10

1:18 pm-6:01 pm

1 stop4h 43m

$335

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Wed 1/28

9:49 am-3:31 pm

1 stop5h 42m

Dallas/Fort Worth

Sat 1/31

1:18 pm-6:01 pm

1 stop4h 43m

$335

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Fri 2/6

9:49 am-3:31 pm

1 stop5h 42m

Dallas/Fort Worth

Mon 2/9

10:25 am-6:01 pm

1 stop7h 36m

$335

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Tue 2/3

9:49 am-8:45 pm

2 stops10h 56m

Dallas/Fort Worth

Mon 2/9

10:25 am-6:01 pm

1 stop7h 36m

$344

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Fri 2/6

9:49 am-11:59 pm

2 stops14h 10m

Dallas/Fort Worth

Sun 2/8

10:25 am-6:01 pm

1 stop7h 36m

$344

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Sun 2/1

9:49 am-8:40 pm

2 stops10h 51m

Dallas/Fort Worth

Sat 2/7

1:18 pm-6:01 pm

1 stop4h 43m

$344

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Sun 2/1

9:49 am-8:40 pm

2 stops10h 51m

Dallas/Fort Worth

Tue 2/10

1:18 pm-6:01 pm

1 stop4h 43m

$344

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Thu 5/28

9:42 am-3:20 pm

1 stop5h 38m

Dallas/Fort Worth

Sun 5/31

10:15 am-5:51 pm

1 stop7h 36m

$344

DecaturDallas

DEC - DFW

DECDFW

Decatur Arpt

Fri 2/6

9:49 am-8:03 pm

2 stops10h 14m

Dallas/Fort Worth

Sat 2/7

6:45 am-6:01 pm

2 stops11h 16m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 15 results
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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 $363). 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 January 5, 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
9,138 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
9,138 reviews
United Airlines
7.4
Good
9,138 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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 5h 42m. 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 $363). 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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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 January 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$244Average$314FlexibilityNo cancel feeOn-time69%

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