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

United Airlines can get you from Dallas to Decatur, Illinois in just under 4h 24m. Your travel time can differ by up to . The distance between Dallas and Decatur, Illinois is about 660 mi.

In terms of precipitation, rainfall in Decatur, Illinois ranges from 1.7 - 4.4 inches per month. June is typically the wettest month, when rainfall can reach 4.4 in. January is typically the driest time to visit Decatur, Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Decatur, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

What is the cheapest time of day to fly from DFW to DEC?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dallas to Decatur, Illinois as you normally would.

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.

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.

$414+ Cheap Flights from Dallas to Decatur, IL

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Cheap flight deals from Dallas to Decatur

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Last-minute

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 September 8, 2026.

Wed 9/3011:42 am -

1 stop7h 01m

Wed 10/79:12 am -

1 stop6h 05m

Deal found 9/8

$414

Sat 9/197:30 am -

2 stops11h 14m

Wed 9/239:13 am -

1 stop6h 03m

Deal found 9/4

$434

Thu 9/179:36 am -

2 stops9h 08m

Sun 9/209:13 am -

1 stop7h 44m

Deal found 9/6

$484

Tue 12/87:30 am -

2 stops11h 10m

Sat 12/126:55 pm -

1 stop16h 42m

Deal found 9/8

$534

Last-minute flights from Dallas to Decatur
Discover last-minute flight deals from Dallas to Decatur. Data last updated September 8, 2026 and is based on user searches.

Thu 9/179:36 am -

2 stops9h 08m

Sun 9/209:13 am -

1 stop7h 44m

Deal found 9/6

$484

Sat 9/197:30 am -

2 stops11h 14m

Wed 9/239:13 am -

1 stop6h 03m

Deal found 9/4

$434

Wed 9/3011:42 am -

1 stop7h 01m

Wed 10/79:12 am -

1 stop6h 05m

Deal found 9/8

$414

Thu 10/17:20 am -

2 stops10h 33m

Thu 10/87:18 pm -

1 stop21h 39m

Deal found 9/5

$562

Fri 10/97:22 pm -

1 stop23h 21m

Sun 10/119:12 am -

1 stop7h 45m

Deal found 9/8

$565

Fri 10/237:20 am -

2 stops11h 23m

Sun 10/259:10 am -

1 stop5h 28m

Deal found 9/7

$574

Find flight deals from Dallas to Decatur

Round-trip from	$424 (United Airlines)

From Dallas to Decatur Arpt

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Route

Depart

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Price

Cheapest round-trip

DallasDecatur

DFW Dallas/Fort Worth - DEC Decatur Arpt

DFWDEC

Dallas/Fort Worth

Wed 9/30

11:42 am-6:43 pm

1 stop7h 01m

Decatur Arpt

Wed 10/7

9:12 am-3:17 pm

1 stop6h 05m

$414

Quickest round-trip

DallasDecatur

DFW Dallas/Fort Worth - DEC Decatur Arpt

DFWDEC

Dallas/Fort Worth

Sat 9/19

2:20 pm-6:44 pm

1 stop4h 24m

Decatur Arpt

Wed 9/23

9:13 am-4:57 pm

1 stop7h 44m

$424

DallasDecatur

DFW Dallas/Fort Worth - DEC Decatur Arpt

DFWDEC

Dallas/Fort Worth

Tue 12/8

6:10 am-6:40 pm

2 stops12h 30m

Decatur Arpt

Sat 12/12

6:55 pm-11:10 am

2 stops16h 15m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Sorted by cheapest first

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.

A78-DEC

DFW-DEC

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.

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Everything you need to know about your flight from Dallas to Decatur

A78-DEC

DFW-DEC

No data available for this route at this time. Please check back soon.

Related info for your journey

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 4h 24m. 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.

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$414+ Cheap flights from Dallas to Decatur, IL (DEC)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dallas to Decatur with Cheapflights

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Cheap flight deals from Dallas to Decatur

Cheapest flights from Dallas to DecaturExplore 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 September 8, 2026.

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 September 8, 2026.

Best flights from Dallas to DecaturDiscover carefully curated flight deals from Dallas to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.

Discover carefully curated flight deals from Dallas to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.

Last-minute flights from Dallas to DecaturDiscover last-minute flight deals from Dallas to Decatur. Data last updated September 8, 2026 and is based on user searches.

Discover last-minute flight deals from Dallas to Decatur. Data last updated September 8, 2026 and is based on user searches.

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Related info for your journey

What airport do you fly into for flights to Decatur from Dallas?

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

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

How can I find direct flights from Dallas to Decatur?

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

Traveling to a place near Decatur?

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Other flights to Decatur

Explore flights to Decatur departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.

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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 September 8, 2026.

Best flights from Dallas to Decatur
Discover carefully curated flight deals from Dallas to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.

Last-minute flights from Dallas to Decatur
Discover last-minute flight deals from Dallas to Decatur. Data last updated September 8, 2026 and is based on user searches.