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Cheap flights from Washington, D.C. to Decatur from $262

This is the cheapest round-trip 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 12/18. 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
1:00 pm - 5:59 pmDCA-DEC
5h 59m1 stop
United Airlines Logo
9:44 am - 5:00 pmDEC-DCA
6h 16m1 stop
$262United Airlines
Find Deal
Thu, Dec 18 - Sat, Dec 20
United Airlines Logo
1:00 pm - 5:52 pmDCA-DEC
5h 52m1 stop
United Airlines Logo
7:08 pm - 11:59 pmDEC-DCA
3h 51m1 stop
$314United Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 9
United Airlines Logo
1:00 pm - 5:59 pmDCA-DEC
5h 59m1 stop
United Airlines Logo
9:44 am - 5:00 pmDEC-DCA
6h 16m1 stop
$335United Airlines
Find Deal
Thu, Dec 18 - Sat, Dec 20
United Airlines Logo
12:00 pm - 5:52 pmDCA-DEC
6h 52m1 stop
United Airlines Logo
7:08 pm - 11:59 pmDEC-DCA
3h 51m1 stop
$340United Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 16
United Airlines Logo
1:00 pm - 5:52 pmDCA-DEC
5h 52m1 stop
United Airlines Logo
7:08 pm - 11:59 pmDEC-DCA
3h 51m1 stop
$342United Airlines
Find Deal
Thu, Nov 6 - Wed, Nov 12
United Airlines Logo
6:15 am - 5:52 pmBWI-DEC
12h 37m1 stop
United Airlines Logo
9:44 am - 5:14 pmDEC-BWI
6h 30m1 stop
$354United Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
United Airlines Logo
6:15 am - 5:52 pmBWI-DEC
12h 37m1 stop
United Airlines Logo
9:44 am - 5:14 pmDEC-BWI
6h 30m1 stop
$376United Airlines
Find Deal
Thu, Nov 6 - Wed, Nov 12
United Airlines Logo
1:10 pm - 5:52 pmBWI-DEC
5h 42m1 stop
United Airlines Logo
7:08 pm - 1:50 pmDEC-BWI
17h 42m1 stop
$383United Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 9
United Airlines Logo
1:00 pm - 5:52 pmDCA-DEC
5h 52m1 stop
United Airlines Logo
7:08 pm - 2:25 pmDEC-DCA
18h 17m2 stops
$394United Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 9
United Airlines Logo
6:30 am - 8:52 amBWI-DEC
27h 22m1 stop
United Airlines Logo
7:09 pm - 9:27 pmDEC-BWI
25h 18m1 stop
$396United Airlines
Find Deal
Tue, Feb 24 - Sat, Feb 28

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
Dec 18
DCA1:00 pmWashington, D.C. Reagan-National
5h 59m
1 stop
DEC5:59 pmDecatur Arpt
Dec 20
DEC9:44 amDecatur Arpt
6h 16m
1 stop
DCA5:00 pmWashington, D.C. Reagan-National
$262
Find similar
United Airlines
Dec 4
DCA1:00 pmWashington, D.C. Reagan-National
5h 52m
1 stop
DEC5:52 pmDecatur Arpt
Dec 9
DEC7:08 pmDecatur Arpt
3h 51m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$314
Find similar
United Airlines
Dec 18
DCA1:00 pmWashington, D.C. Reagan-National
5h 59m
1 stop
DEC5:59 pmDecatur Arpt
Dec 20
DEC9:44 amDecatur Arpt
6h 16m
1 stop
DCA5:00 pmWashington, D.C. Reagan-National
$335
Find similar

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 October 16, 2025.
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 12/18

1:00 pm-5:59 pm

1 stop5h 59m

Decatur Arpt

Sat 12/20

9:44 am-5:00 pm

1 stop6h 16m

$262

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 12/4

1:00 pm-5:52 pm

1 stop5h 52m

Decatur Arpt

Tue 12/9

7:08 pm-11:59 pm

1 stop3h 51m

$314

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 12/18

1:00 pm-5:59 pm

1 stop5h 59m

Decatur Arpt

Sat 12/20

9:44 am-5:00 pm

1 stop6h 16m

$335

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Sun 11/9

12:00 pm-5:52 pm

1 stop6h 52m

Decatur Arpt

Sun 11/16

7:08 pm-11:59 pm

1 stop3h 51m

$340

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 11/6

1:00 pm-5:52 pm

1 stop5h 52m

Decatur Arpt

Wed 11/12

7:08 pm-11:59 pm

1 stop3h 51m

$342

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Fri 11/14

6:15 am-5:52 pm

1 stop12h 37m

Decatur Arpt

Mon 11/17

9:44 am-5:14 pm

1 stop6h 30m

$354

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Thu 11/6

6:15 am-5:52 pm

1 stop12h 37m

Decatur Arpt

Wed 11/12

9:44 am-5:14 pm

1 stop6h 30m

$376

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Thu 12/4

1:10 pm-5:52 pm

1 stop5h 42m

Decatur Arpt

Tue 12/9

7:08 pm-1:50 pm

1 stop17h 42m

$383

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 12/4

1:00 pm-5:52 pm

1 stop5h 52m

Decatur Arpt

Tue 12/9

7:08 pm-2:25 pm

2 stops18h 17m

$394

BaltimoreDecatur

BWI - DEC

BWIDEC

Baltimore/Washington

Tue 2/24

6:30 am-8:52 am

1 stop27h 22m

Decatur Arpt

Sat 2/28

7:09 pm-9:27 pm

1 stop25h 18m

$396

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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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 day to depart on your flight to Decatur, Illinois?

The cheapest day to depart on your flight to Decatur, Illinois is on a Friday when prices can be found for as low as $323. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. to Decatur, Illinois on a Tuesday will generally be more expensive and average around $545. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Decatur, Illinois?

In the morning is the cheapest time of day to fly from Washington, D.C. to Decatur, Illinois when you can find flight prices for as low as $343. Flying to Decatur, Illinois in the morning is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Decatur, Illinois, so prices are often more expensive at around $356 per ticket.

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

Direct flights

None
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.
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  • 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 51m, 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.

  • What is the most popular airline from Washington, D.C. to Decatur, Illinois?

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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