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Delaware

$68+ Cheap flights from Washington, D.C. (WAS) to Delaware

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ILG
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Delaware

Cheapest flights from Washington, D.C. to Delaware
Explore the most affordable flight options available from Washington, D.C. to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:44 pmDCA - PHL
Nonstop1h 00mAmerican Airlines
Wed 12/313:35 pmPHL - DCA
Nonstop1h 00mAmerican Airlines
Deal found 12/13$209
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Sat 12/2710:20 pmIAD - PHL
Nonstop1h 10mUnited Airlines
Wed 12/3110:39 amPHL - IAD
Nonstop1h 16mUnited Airlines
Deal found 12/12$209
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:17 amBWI - PHL
2 stops10h 52mMultiple Airlines
Fri 1/168:43 pmPHL - BWI
1 stop14h 34mMultiple Airlines
Deal found 12/12$220
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:44 pmDCA - PHL
Nonstop1h 00mAmerican Airlines
Tue 12/308:01 pmPHL - DCA
Nonstop1h 11mAmerican Airlines
Deal found 12/11$224
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Thu 12/1812:55 pmIAD - PHL
Nonstop1h 12mUnited Airlines
Tue 12/306:00 amPHL - IAD
Nonstop1h 15mUnited Airlines
Deal found 12/11$224
This United Airlines deal was found by Cheapflights users on 12/13. 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 12/2412:55 pmIAD - PHL
Nonstop1h 12mUnited Airlines
Sat 12/276:00 amPHL - IAD
Nonstop1h 15mUnited Airlines
Deal found 12/13$238
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Mon 12/228:40 amIAD - PHL
Nonstop1h 15mUnited Airlines
Sun 12/286:00 amPHL - IAD
Nonstop1h 15mUnited Airlines
Deal found 12/12$261
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Mon 12/2910:20 pmIAD - PHL
Nonstop1h 10mUnited Airlines
Fri 1/210:39 amPHL - IAD
Nonstop1h 16mUnited Airlines
Deal found 12/14$269
This American Airlines deal was found by Cheapflights users on 12/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/144:43 pmDCA - PHL
Nonstop1h 06mAmerican Airlines
Thu 1/17:44 pmPHL - DCA
Nonstop1h 11mAmerican Airlines
Deal found 12/12$274
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sat 12/2012:55 pmIAD - PHL
Nonstop1h 12mUnited Airlines
Sun 12/216:00 amPHL - IAD
Nonstop1h 15mUnited Airlines
Deal found 12/13$284
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:17 pmDCA - PHL
Nonstop0h 57mAmerican Airlines
Sun 12/216:57 pmPHL - DCA
Nonstop1h 16mAmerican Airlines
Deal found 12/13$289
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Fri 12/1910:20 pmIAD - PHL
Nonstop1h 10mUnited Airlines
Sun 12/216:00 amPHL - IAD
Nonstop1h 15mUnited Airlines
Deal found 12/13$289

Find flight deals from Washington, D.C. to Delaware

Keep the following information in mind while searching for Washington, D.C. to Delaware flight deals. Data was last updated December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$68
(lastminute.com)

Popular in

June

Cheapest in

April

Average price

$189
Provider with most accurate pricing for Washington, D.C. (WAS)-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Philadelphia flights.
Search Deals
From Washington, D.C. (WAS) to Delaware
Search Deals
One-way flight from Washington, D.C. (WAS) to Delaware
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Delaware 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 December 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Delaware that are best for you.

Fly from

Washington, D.C.

Fly to

Delaware

Route

Depart

Return

Price

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sun 1/11

8:17 pm-6:47 pm

1 stop22h 30m

Philadelphia

Sun 1/18

4:45 pm-9:00 am

1 stop16h 15m

$138

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Fri 2/6

7:00 am-12:35 pm

1 stop5h 35m

Philadelphia

Sat 2/7

8:40 am-2:34 pm

1 stop5h 54m

$151

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Mon 1/26

7:00 am-12:35 pm

1 stop5h 35m

Philadelphia

Fri 1/30

8:40 am-1:20 pm

1 stop4h 40m

$151

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Sat 1/10

12:20 pm-6:38 pm

1 stop6h 18m

Philadelphia

Sat 1/17

8:40 am-2:29 pm

1 stop5h 49m

$151

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Thu 1/8

6:00 am-2:51 pm

1 stop8h 51m

Philadelphia

Thu 1/8

8:43 pm-10:21 am

1 stop13h 38m

$156

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 1/9

6:00 am-2:51 pm

1 stop8h 51m

Philadelphia

Fri 1/16

8:43 pm-11:17 am

1 stop14h 34m

$157

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 2/6

10:00 am-7:59 pm

1 stop9h 59m

Philadelphia

Sat 2/7

8:20 am-11:36 pm

1 stop15h 16m

$158

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Thu 1/29

7:00 am-12:35 pm

1 stop5h 35m

Philadelphia

Sat 1/31

8:40 am-2:29 pm

1 stop5h 49m

$159

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 1/16

1:00 pm-8:47 am

1 stop19h 47m

Philadelphia

Sat 1/17

4:08 pm-11:47 pm

1 stop7h 39m

$161

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Thu 1/8

1:00 pm-8:01 pm

1 stop7h 01m

Philadelphia

Mon 1/12

5:30 am-11:17 am

1 stop5h 47m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 54 results
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Best time to book a flight from Washington, D.C. to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from Washington, D.C. 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 Washington, D.C. to Delaware
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 Washington, D.C. to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. to Delaware?

    Departing from Washington, D.C. to Delaware will take you 1h 15m. There are 134 mi between Washington, D.C. and Delaware. This flight may include one or multiple stops.

  • What are the most popular routes from Washington, D.C. to Delaware?

    Most travelers choose Washington, D.C. Dulles Intl - Philadelphia, Washington, D.C. Reagan-National - Philadelphia or Baltimore/Washington - Philadelphia when deciding on the best route from Washington, D.C. to Delaware.

  • Can I find deals for flights from Washington, D.C. to Delaware that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Delaware flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Delaware.

  • Can I find deals for business class flights from Washington, D.C. to Delaware?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Delaware 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

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Alternative routes for Washington, D.C. to Delaware

See prices for flight routes from nearby airports that may be better suited for you.
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