HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$401+ Cheap flights from District of Columbia 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DEC
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to Decatur with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to Decatur

Cheapest flights from District of Columbia to Decatur
Explore the most affordable flight options available from District of Columbia to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.

This United Airlines deal was found by Cheapflights users on 6/10. 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 7/71:00 pm
DCA
-
DEC
1 stop5h 56m
United Airlines
Mon 7/139:37 am
DEC
-
DCA
1 stop5h 15m
United Airlines
Deal found 6/10$401
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/2211:57 am
DCA
-
DEC
1 stop6h 59m
United Airlines
Sun 7/269:37 am
DEC
-
DCA
1 stop24h 24m
United Airlines
Deal found 6/11$454
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/151:00 pm
DCA
-
DEC
1 stop5h 56m
United Airlines
Sun 7/196:45 pm
DEC
-
DCA
1 stop24h 25m
United Airlines
Deal found 6/7$459
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/161:00 pm
DCA
-
DEC
1 stop5h 56m
United Airlines
Sun 7/196:45 pm
DEC
-
DCA
1 stop25h 25m
United Airlines
Deal found 6/7$519

Find flight deals from District of Columbia to Decatur

Keep the following information in mind while searching for District of Columbia to Decatur flight deals. Data was last updated June 12, 2026.

Round-trip from

$401
(United Airlines)
From District of Columbia to Decatur Arpt
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Decatur 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 June 12, 2026.
Use the filters below to find and compare flights from District of Columbia to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Tue 7/7

1:00 pm-5:56 pm

1 stop5h 56m

Decatur Arpt

Mon 7/13

9:37 am-3:52 pm

1 stop5h 15m

$401

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 7/22

11:57 am-5:56 pm

1 stop6h 59m

Decatur Arpt

Sun 7/26

9:37 am-11:01 am

1 stop24h 24m

$454

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Wed 7/15

1:00 pm-5:56 pm

1 stop5h 56m

Decatur Arpt

Sun 7/19

6:45 pm-8:10 pm

1 stop24h 25m

$459

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Thu 7/16

1:00 pm-5:56 pm

1 stop5h 56m

Decatur Arpt

Sun 7/19

6:45 pm-9:10 pm

1 stop25h 25m

$519

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Fri 7/17

11:57 am-5:56 pm

1 stop6h 59m

Decatur Arpt

Sun 7/19

6:45 pm-8:10 pm

1 stop24h 25m

$519
Cheapest one-way
Quickest one-way

Washington, D.C.Decatur

DCA - DEC

DCADEC

Washington, D.C. Reagan-National

Mon 6/15

2:00 pm-5:56 pm

1 stop4h 56m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Sorted by cheapest first

Best time to book a flight from District of Columbia to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from District of Columbia 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 District of Columbia to Decatur
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Decatur. 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 into for flights to Decatur from District of Columbia?

    Located just 4.7 mi from the city center, Decatur Arpt (DEC) is the airport most travelers will use when flying to Decatur from District of Columbia.

  • How long is the flight from District of Columbia to Decatur, Illinois?

    A quick flight from District of Columbia to Decatur, Illinois can take about 5h 56m. United Airlines provides one of the quickest options available for as low as $401. District of Columbia and Decatur, Illinois are separated by a distance of 635 mi.

  • Can I find deals for flights from District of Columbia to Decatur that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Decatur.

  • Can I find deals for business class flights from District of Columbia to Decatur?

    Yes. Cheapflights offers flight deals from District of Columbia 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.

See more FAQs

Traveling to a place near Decatur?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Decatur

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to O'Hare Intl flights
Newark to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
Baltimore to O'Hare Intl flights
Hobby to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
Reagan-National to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Ontario to O'Hare Intl flights
Newark to Midway flights
Seattle to O'Hare Intl flights
Denver to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Boston to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Orlando to O'Hare Intl flights
Hobby to Midway flights
Sky Harbor Intl to O'Hare Intl flights
Tampa to O'Hare Intl flights
Los Angeles to Midway flights
Santa Ana to O'Hare Intl flights
San Francisco to Midway flights
Fort Lauderdale to O'Hare Intl flights
Raleigh to O'Hare Intl flights
Dulles Intl to Midway flights
John F Kennedy Intl to Midway flights
Austin to O'Hare Intl flights
Atlanta to Midway flights
San Diego to O'Hare Intl flights
Philadelphia to Midway flights
Minneapolis to Midway flights
Miami to O'Hare Intl flights
Baltimore to Midway flights
Charlotte to O'Hare Intl flights
San Jose to O'Hare Intl flights
Minneapolis to O'Hare Intl flights
LaGuardia to Midway flights
Tampa to Midway flights
Denver to Midway flights
Burbank to O'Hare Intl flights
George Bush Intcntl to Midway flights
Las Vegas to O'Hare Intl flights
New Orleans to O'Hare Intl flights
Hartford to O'Hare Intl flights
Newark to St. Louis flights
Seattle to Midway flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.