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Cheap flights from Washington, D.C. to Decatur from $173

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Decatur departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Washington, D.C. to Decatur

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:00 pm - 5:54 pm
DCA
-
DEC
4h 54m
1 stop
United Airlines Logo
9:50 am - 3:32 pm
DEC
-
DCA
4h 42m
1 stop
$334United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
8:09 am - 5:53 pm
BWI
-
DEC
10h 44m
1 stop
United Airlines Logo
7:20 pm - 9:23 pm
DEC
-
BWI
25h 03m
1 stop
$364United Airlines
Wed, Mar 25 - Tue, Mar 31
United Airlines Logo
10:30 am - 8:52 am
BWI
-
DEC
23h 22m
1 stop
United Airlines Logo
7:15 pm - 2:01 pm
DEC
-
BWI
17h 46m
1 stop
$369United Airlines
Wed, Feb 25 - Fri, Feb 27
United Airlines Logo
2:00 pm - 5:53 pm
DCA
-
DEC
4h 53m
1 stop
United Airlines Logo
7:20 pm - 1:10 pm
DEC
-
DCA
16h 50m
1 stop
$374United Airlines
Wed, Mar 25 - Tue, Mar 31
United Airlines Logo
2:00 pm - 6:01 pm
DCA
-
DEC
5h 01m
1 stop
United Airlines Logo
9:50 am - 3:32 pm
DEC
-
DCA
4h 42m
1 stop
$375United Airlines
Wed, Feb 11 - Sun, Feb 15
United Airlines Logo
6:30 am - 5:54 pm
BWI
-
DEC
12h 24m
1 stop
United Airlines Logo
7:15 pm - 2:01 pm
DEC
-
BWI
17h 46m
1 stop
$376United Airlines
Thu, Feb 12 - Mon, Feb 16
United Airlines Logo
2:00 pm - 5:54 pm
DCA
-
DEC
4h 54m
1 stop
United Airlines Logo
7:15 pm - 10:52 pm
DEC
-
DCA
26h 37m
1 stop
$408United Airlines
Wed, Feb 25 - Fri, Feb 27
United Airlines Logo
1:00 pm - 5:54 pm
DCA
-
DEC
5h 54m
1 stop
United Airlines Logo
7:15 pm - 8:54 am
DEC
-
DCA
12h 39m
1 stop
$445United Airlines
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
12:00 pm - 5:54 pm
DCA
-
DEC
6h 54m
1 stop
United Airlines Logo
9:50 am - 3:32 pm
DEC
-
DCA
4h 42m
1 stop
$470United Airlines
Thu, Feb 12 - Mon, Feb 16
United Airlines Logo
5:18 pm - 8:52 am
BWI
-
DEC
16h 34m
1 stop
United Airlines Logo
7:15 pm - 9:17 pm
DEC
-
BWI
25h 02m
1 stop
$473United Airlines
Wed, Feb 11 - Sun, Feb 15

United Airlines flights from Washington, D.C. to Decatur, Illinois

Our best United Airlines deals on Washington, D.C. to Decatur, Illinois flight tickets
United Airlines
Feb 19
DCA2:00 pmWashington, D.C. Reagan-National
4h 54m
1 stop
DEC5:54 pmDecatur Arpt
Feb 23
DEC9:50 amDecatur Arpt
4h 42m
1 stop
DCA3:32 pmWashington, D.C. Reagan-National
$334
United Airlines
Mar 25
BWI8:09 amBaltimore/Washington
10h 44m
1 stop
DEC5:53 pmDecatur Arpt
Mar 31
DEC7:20 pmDecatur Arpt
25h 03m
1 stop
BWI9:23 pmBaltimore/Washington
$364
United Airlines
Feb 25
BWI10:30 amBaltimore/Washington
23h 22m
1 stop
DEC8:52 amDecatur Arpt
Feb 27
DEC7:15 pmDecatur Arpt
17h 46m
1 stop
BWI2:01 pmBaltimore/Washington
$369

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Decatur, Illinois 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, momondo users made 832,500 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Decatur, Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 2/19

2:00 pm-5:54 pm

1 stop4h 54m

Decatur Arpt

Mon 2/23

9:50 am-3:32 pm

1 stop4h 42m

$334

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Wed 3/25

8:09 am-5:53 pm

1 stop10h 44m

Decatur Arpt

Tue 3/31

7:20 pm-9:23 pm

1 stop25h 03m

$364

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Wed 2/25

10:30 am-8:52 am

1 stop23h 22m

Decatur Arpt

Fri 2/27

7:15 pm-2:01 pm

1 stop17h 46m

$369

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 3/25

2:00 pm-5:53 pm

1 stop4h 53m

Decatur Arpt

Tue 3/31

7:20 pm-1:10 pm

1 stop16h 50m

$374

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 2/11

2:00 pm-6:01 pm

1 stop5h 01m

Decatur Arpt

Sun 2/15

9:50 am-3:32 pm

1 stop4h 42m

$375

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Thu 2/12

6:30 am-5:54 pm

1 stop12h 24m

Decatur Arpt

Mon 2/16

7:15 pm-2:01 pm

1 stop17h 46m

$376

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 2/25

2:00 pm-5:54 pm

1 stop4h 54m

Decatur Arpt

Fri 2/27

7:15 pm-10:52 pm

1 stop26h 37m

$408

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Tue 3/3

1:00 pm-5:54 pm

1 stop5h 54m

Decatur Arpt

Sat 3/7

7:15 pm-8:54 am

1 stop12h 39m

$445

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 2/12

12:00 pm-5:54 pm

1 stop6h 54m

Decatur Arpt

Mon 2/16

9:50 am-3:32 pm

1 stop4h 42m

$470

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Wed 2/11

5:18 pm-8:52 am

1 stop16h 34m

Decatur Arpt

Sun 2/15

7:15 pm-9:17 pm

1 stop25h 02m

$473

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Decatur from

How to get the cheapest flight ticket from Washington, D.C. to Decatur, Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to Decatur Arpt?

United Airlines is the most popular carrier operating from Washington, D.C. to Decatur Arpt

What airlines fly to Decatur, Illinois?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Decatur, Illinois from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 71% of people opting to fly with this airline when traveling to Decatur, Illinois. Keep in mind that there are 3 different airlines that fly to Decatur, Illinois on a routine basis, so you have a few additional options to choose from.

When to book flights from Washington, D.C. to Decatur, Illinois

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Decatur, Illinois according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Decatur, Illinois (WAS to DEC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Decatur, Illinois

Fastest flight time

4h 54m

Direct flights

None
The fastest flight from Washington, D.C. to Decatur, Illinois takes 4h 54m
There are no direct flights from Washington, D.C. to Decatur, Illinois. There are no popular flight routes from Washington, D.C. to Decatur, Illinois.
Search flight deals

  • How far is Washington, D.C. to Decatur Arpt by plane?

    A flight from Washington, D.C. to Decatur Arpt will travel around 639.0 mi. Flights usually cover this in 4h 54m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. to Decatur Arpt Airport?

    Prices for flights from Washington, D.C. to Decatur Arpt Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Decatur Arpt Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Decatur Arpt Airport.

  • What documentation or ID do you need to fly to Decatur Arpt Airport?

    The necessary travel and health documents for your Decatur Arpt Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Effingham
Mattoon
Forsyth

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Decatur?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Decatur from Washington, D.C..

Can I find flights from Washington, D.C. to Decatur with flexible booking policies on momondo?

momondo does allow users to show only those flights to Decatur from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Decatur?

Once you have performed a search for Washington, D.C. to Decatur flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Decatur right now. Can momondo alert me if prices change?

Price alerts on flights to Decatur from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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