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Cheap flights from Washington, D.C. to Decatur from $314

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 10/30. 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
1 adult, Economy, 0 bags

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
1:05 pm - 6:10 pmDCA  Washington, D.C. Reagan-National-DEC Decatur Arpt
6h 05m1 stop Chicago O'Hare Intl
United Airlines Logo
9:10 am - 3:38 pmDEC  Decatur Arpt-DCA Washington, D.C. Reagan-National
5h 28m1 stop Chicago O'Hare Intl
$314United Airlines
Fri, Oct 30 - Sun, Nov 1
United Airlines Logo
1:10 pm - 5:51 pmBWI  Baltimore/Washington-DEC Decatur Arpt
5h 41m1 stop Chicago O'Hare Intl
United Airlines Logo
9:42 am - 5:13 pmDEC  Decatur Arpt-BWI Baltimore/Washington
6h 31m1 stop Chicago O'Hare Intl
$394United Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
2:00 pm - 5:51 pmDCA  Washington, D.C. Reagan-National-DEC Decatur Arpt
4h 51m1 stop Chicago O'Hare Intl
United Airlines Logo
9:42 am - 4:52 pmDEC  Decatur Arpt-DCA Washington, D.C. Reagan-National
6h 10m1 stop Chicago O'Hare Intl
$394United Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
12:34 pm - 6:10 pmBWI  Baltimore/Washington-DEC Decatur Arpt
6h 36m1 stop Chicago O'Hare Intl
United Airlines Logo
9:10 am - 2:06 pmDEC  Decatur Arpt-BWI Baltimore/Washington
3h 56m1 stop Chicago O'Hare Intl
$409United Airlines
Thu, Oct 29 - Sun, Nov 1
United Airlines Logo
1:00 pm - 5:59 pmBWI  Baltimore/Washington-DEC Decatur Arpt
5h 59m1 stop Chicago O'Hare Intl
United Airlines Logo
7:20 pm - 9:30 pmDEC  Decatur Arpt-BWI Baltimore/Washington
25h 10m1 stop Chicago O'Hare Intl
$415United Airlines
Wed, Sep 2 - Fri, Sep 4
United Airlines Logo
11:57 am - 5:59 pmDCA  Washington, D.C. Reagan-National-DEC Decatur Arpt
7h 02m1 stop Chicago O'Hare Intl
United Airlines Logo
7:20 pm - 2:23 pmDEC  Decatur Arpt-DCA Washington, D.C. Reagan-National
18h 03m1 stop Chicago O'Hare Intl
$415United Airlines
Wed, Sep 2 - Fri, Sep 4
United Airlines Logo
3:30 pm - 6:44 pmDCA  Washington, D.C. Reagan-National-DEC Decatur Arpt
4h 14m1 stop Chicago O'Hare Intl
United Airlines Logo
9:12 am - 3:42 pmDEC  Decatur Arpt-DCA Washington, D.C. Reagan-National
5h 30m1 stop Chicago O'Hare Intl
$439United Airlines
Fri, Sep 18 - Thu, Sep 24
United Airlines Logo
12:10 pm - 6:44 pmBWI  Baltimore/Washington-DEC Decatur Arpt
7h 34m1 stop Chicago O'Hare Intl
United Airlines Logo
7:20 pm - 9:43 pmDEC  Decatur Arpt-BWI Baltimore/Washington
25h 23m1 stop Chicago O'Hare Intl
$456United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
1:04 pm - 5:59 pmDCA  Washington, D.C. Reagan-National-DEC Decatur Arpt
5h 55m1 stop Chicago O'Hare Intl
United Airlines Logo
7:20 pm - 8:55 amDEC  Decatur Arpt-DCA Washington, D.C. Reagan-National
12h 35m1 stop Chicago O'Hare Intl
$460United Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
12:10 pm - 6:44 pmBWI  Baltimore/Washington-DEC Decatur Arpt
7h 34m1 stop Chicago O'Hare Intl
United Airlines Logo
7:18 pm - 10:59 pmDEC  Decatur Arpt-BWI Baltimore/Washington
26h 41m1 stop Chicago O'Hare Intl
$470United Airlines
Sat, Sep 19 - Thu, Sep 24

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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
Oct 30
DCA1:05 pmWashington, D.C. Reagan-National
6h 05m
1 stop
DEC6:10 pmDecatur Arpt
Nov 1
DEC9:10 amDecatur Arpt
5h 28m
1 stop
DCA3:38 pmWashington, D.C. Reagan-National
$314
United Airlines
Dec 5
DCA2:00 pmWashington, D.C. Reagan-National
4h 51m
1 stop
DEC5:51 pmDecatur Arpt
Dec 9
DEC9:42 amDecatur Arpt
6h 10m
1 stop
DCA4:52 pmWashington, D.C. Reagan-National
$394
United Airlines
Oct 29
BWI12:34 pmBaltimore/Washington
6h 36m
1 stop
DEC6:10 pmDecatur Arpt
Nov 1
DEC9:10 amDecatur Arpt
3h 56m
1 stop
BWI2:06 pmBaltimore/Washington
$409

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 August 11, 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

Cheapest round-trip

Washington, D.C.Decatur

DCA Washington, D.C. Reagan-National - DEC Decatur Arpt

DCADEC

Washington, D.C. Reagan-National

Fri 10/30

1:05 pm-6:10 pm

1 stop6h 05m

Decatur Arpt

Sun 11/1

9:10 am-3:38 pm

1 stop5h 28m

$314

BaltimoreDecatur

BWI Baltimore/Washington - DEC Decatur Arpt

BWIDEC

Baltimore/Washington

Sat 12/5

1:10 pm-5:51 pm

1 stop5h 41m

Decatur Arpt

Wed 12/9

9:42 am-5:13 pm

1 stop6h 31m

$394

Washington, D.C.Decatur

DCA Washington, D.C. Reagan-National - DEC Decatur Arpt

DCADEC

Washington, D.C. Reagan-National

Sat 12/5

2:00 pm-5:51 pm

1 stop4h 51m

Decatur Arpt

Wed 12/9

9:42 am-4:52 pm

1 stop6h 10m

$394

BaltimoreDecatur

BWI Baltimore/Washington - DEC Decatur Arpt

BWIDEC

Baltimore/Washington

Thu 10/29

12:34 pm-6:10 pm

1 stop6h 36m

Decatur Arpt

Sun 11/1

9:10 am-2:06 pm

1 stop3h 56m

$409

BaltimoreDecatur

BWI Baltimore/Washington - DEC Decatur Arpt

BWIDEC

Baltimore/Washington

Wed 9/2

1:00 pm-5:59 pm

1 stop5h 59m

Decatur Arpt

Fri 9/4

7:20 pm-9:30 pm

1 stop25h 10m

$415

Washington, D.C.Decatur

DCA Washington, D.C. Reagan-National - DEC Decatur Arpt

DCADEC

Washington, D.C. Reagan-National

Wed 9/2

11:57 am-5:59 pm

1 stop7h 02m

Decatur Arpt

Fri 9/4

7:20 pm-2:23 pm

1 stop18h 03m

$415
Quickest round-trip

Washington, D.C.Decatur

DCA Washington, D.C. Reagan-National - DEC Decatur Arpt

DCADEC

Washington, D.C. Reagan-National

Fri 9/18

3:30 pm-6:44 pm

1 stop4h 14m

Decatur Arpt

Thu 9/24

9:12 am-3:42 pm

1 stop5h 30m

$439

BaltimoreDecatur

BWI Baltimore/Washington - DEC Decatur Arpt

BWIDEC

Baltimore/Washington

Sat 9/19

12:10 pm-6:44 pm

1 stop7h 34m

Decatur Arpt

Mon 9/21

7:20 pm-9:43 pm

1 stop25h 23m

$456

Washington, D.C.Decatur

DCA Washington, D.C. Reagan-National - DEC Decatur Arpt

DCADEC

Washington, D.C. Reagan-National

Thu 9/3

1:04 pm-5:59 pm

1 stop5h 55m

Decatur Arpt

Mon 9/7

7:20 pm-8:55 am

1 stop12h 35m

$460

BaltimoreDecatur

BWI Baltimore/Washington - DEC Decatur Arpt

BWIDEC

Baltimore/Washington

Sat 9/19

12:10 pm-6:44 pm

1 stop7h 34m

Decatur Arpt

Thu 9/24

7:18 pm-10:59 pm

1 stop26h 41m

$470

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 airlines fly to Decatur, Illinois?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Decatur, Illinois from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 54% 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 51m

Direct flights

None
The fastest flight from Washington, D.C. to Decatur, Illinois takes 4h 51m
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

Frequently asked questions about flying from Washington, D.C. to Decatur, Illinois

  • 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.

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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