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Delaware

$70+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ILG
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
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 July 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/126:35 am
BWI
-
PHL
1 stop5h 47m
Frontier
Sat 8/151:32 pm
PHL
-
BWI
1 stop8h 27m
Frontier
Deal found 7/1$131
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 9/237:31 pm
BWI
-
PHL
1 stop12h 05m
Frontier
Tue 9/299:14 am
PHL
-
BWI
1 stop6h 58m
Frontier
Deal found 7/2$133
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sat 8/156:35 am
BWI
-
PHL
1 stop15h 53m
Frontier
Sat 8/226:30 am
PHL
-
BWI
1 stop5h 54m
Frontier
Deal found 7/1$146
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Tue 7/286:35 am
BWI
-
PHL
1 stop15h 53m
Frontier
Fri 7/314:40 pm
PHL
-
BWI
1 stop14h 46m
Frontier
Deal found 7/1$149
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 7/296:35 am
BWI
-
PHL
1 stop5h 47m
Frontier
Wed 7/294:30 pm
PHL
-
BWI
1 stop6h 47m
Frontier
Deal found 7/3$150
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/128:35 am
BWI
-
PHL
1 stop13h 53m
Frontier
Fri 8/214:45 pm
PHL
-
BWI
1 stop14h 41m
Frontier
Deal found 7/1$156
This Kiwi.com deal was found by Cheapflights users on 7/2. 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.
Sat 8/156:49 am
IAD
-
PHL
1 stop12h 31m
Frontier
Sat 8/228:30 am
PHL
-
IAD
1 stop14h 22m
Frontier
Deal found 7/2$157
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Tue 8/189:32 pm
BWI
-
PHL
1 stop9h 43m
Frontier
Tue 8/256:30 am
PHL
-
BWI
1 stop5h 54m
Frontier
Deal found 7/4$159
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/127:48 am
IAD
-
PHL
1 stop14h 40m
Frontier
Sat 8/156:25 am
PHL
-
IAD
1 stop10h 09m
Frontier
Deal found 7/1$163
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 7/297:49 am
IAD
-
PHL
1 stop14h 39m
Frontier
Wed 8/56:25 am
PHL
-
IAD
1 stop16h 27m
Frontier
Deal found 7/1$169
This Kiwi.com deal was found by Cheapflights users on 7/3. 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.
Sun 8/96:35 am
BWI
-
PHL
1 stop5h 47m
Frontier
Tue 8/186:30 am
PHL
-
BWI
1 stop15h 29m
Frontier
Deal found 7/3$173
This Kiwi.com deal was found by Cheapflights users on 7/2. 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.
Sun 8/169:32 pm
BWI
-
PHL
1 stop9h 43m
Frontier
Sun 8/232:45 pm
PHL
-
BWI
1 stop16h 41m
Frontier
Deal found 7/2$198

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 July 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$131
(Kiwi.com)

One-way from

$70
(Kiwi.com)

Popular in

March

Cheapest in

December

Average price

$359
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. 20% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 6, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 8/15

6:35 am-10:28 pm

1 stop15h 53m

Philadelphia

Sat 8/22

6:30 am-12:24 pm

1 stop5h 54m

$146

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 7/29

6:35 am-12:22 pm

1 stop5h 47m

Philadelphia

Wed 7/29

4:30 pm-11:17 pm

1 stop6h 47m

$150

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 8/12

8:35 am-10:28 pm

1 stop13h 53m

Philadelphia

Fri 8/21

4:45 pm-7:26 am

1 stop14h 41m

$156

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Wed 8/12

8:33 pm-7:15 am

1 stop10h 42m

Philadelphia

Fri 8/21

4:45 pm-10:52 pm

1 stop6h 07m

$205

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Wed 8/19

8:45 am-10:33 pm

1 stop13h 48m

Philadelphia

Wed 8/26

4:45 pm-7:26 am

1 stop14h 41m

$207

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sun 7/26

9:37 pm-7:15 am

1 stop9h 38m

Philadelphia

Sun 8/2

6:30 am-6:09 pm

1 stop11h 39m

$213

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Fri 8/28

6:28 pm-7:15 am

1 stop12h 47m

Philadelphia

Sun 8/30

8:30 am-5:43 pm

1 stop9h 13m

$221

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 8/1

6:35 am-12:22 pm

1 stop5h 47m

Philadelphia

Sat 8/8

9:51 am-3:34 pm

1 stop5h 43m

$225

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Fri 9/11

6:14 am-12:54 pm

1 stop6h 40m

Philadelphia

Thu 9/17

6:00 am-11:20 am

1 stop5h 20m

$231

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Tue 9/8

2:00 pm-8:00 pm

1 stop6h 00m

Philadelphia

Tue 9/15

3:25 pm-9:00 pm

1 stop5h 35m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 16m. 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

Browse thousands of different options on Cheapflights for your next trip

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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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