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Delaware

$100+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — ILG
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheap 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 August 2, 2025.

Round-trip from

$178
(American Airlines)

One-way from

$109
(Mytrip)

Popular in

August

Cheapest in

April

Average price

$819
From Washington, D.C. (WAS) to Delaware
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One-way flight from Washington, D.C. (WAS) to Delaware
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Highest demand for flights based on searches. 23% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 15% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 2, 2025.

This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:10 amDCA - PHL
Nonstop1h 11mAmerican Airlines
Sun 8/3110:30 amPHL - DCA
Nonstop1h 13mAmerican Airlines
Deal found 8/1$178
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/512:52 pmIAD - PHL
Nonstop1h 14mUnited Airlines
Mon 9/87:58 pmPHL - IAD
Nonstop1h 07mUnited Airlines
Deal found 7/31$179
This Mytrip deal was found by Cheapflights users on 8/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:27 pmBWI - PHL
1 stop6h 02mSpirit Airlines
Sun 9/149:47 amPHL - BWI
1 stop12h 36mSpirit Airlines
Deal found 8/1$187
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:55 amDCA - PHL
1 stop5h 45mJetBlue
Wed 9/103:55 pmPHL - DCA
1 stop5h 00mJetBlue
Deal found 7/30$209
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1411:04 amIAD - PHL
2 stops22h 52mMultiple Airlines
Sat 8/162:06 pmPHL - IAD
2 stops20h 08mMultiple Airlines
Deal found 7/31$222
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:34 amIAD - PHL
1 stop4h 10mAmerican Airlines
Sun 8/318:30 amPHL - IAD
1 stop4h 18mAmerican Airlines
Deal found 8/1$287
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:05 amDCA - PHL
1 stop7h 00mSouthwest
Thu 8/145:35 pmPHL - DCA
1 stop5h 25mSouthwest
Deal found 7/30$317
This Kissandfly.com deal was found by Cheapflights users on 7/31. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/141:00 pmDCA - PHL
2 stops20h 25mFrontier
Sun 9/216:30 pmPHL - DCA
1 stop13h 55mFrontier
Deal found 7/31$365
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:30 amDCA - SBY
1 stop4h 12mAmerican Airlines
Wed 8/206:00 amSBY - DCA
1 stop6h 59mAmerican Airlines
Deal found 8/1$460
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/161:18 pmIAD - SBY
1 stop7h 13mAmerican Airlines
Wed 8/206:00 amSBY - IAD
1 stop3h 53mAmerican Airlines
Deal found 8/1$460
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 10/297:35 amBWI - SBY
1 stop11h 59mAmerican Airlines
Sat 11/18:45 amSBY - BWI
1 stop9h 18mAmerican Airlines
Deal found 7/30$619

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 August 2, 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

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Thu 8/28

6:10 am-7:21 am

Nonstop1h 11m

Philadelphia

Sun 8/31

10:30 am-11:43 am

Nonstop1h 13m

$178

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Fri 9/5

12:52 pm-2:06 pm

Nonstop1h 14m

Philadelphia

Mon 9/8

7:58 pm-9:05 pm

Nonstop1h 07m

$179

BaltimorePhiladelphia

BWI - PHL

BWIPHL

Baltimore/Washington

Sat 9/13

4:27 pm-10:29 pm

1 stop6h 02m

Philadelphia

Sun 9/14

9:47 am-10:23 pm

1 stop12h 36m

$187

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Thu 9/4

11:55 am-5:40 pm

1 stop5h 45m

Philadelphia

Wed 9/10

3:55 pm-8:55 pm

1 stop5h 00m

$209

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 8/14

11:04 am-9:56 am

2 stops22h 52m

Philadelphia

Sat 8/16

2:06 pm-10:14 am

2 stops20h 08m

$222

Washington, D.C.Philadelphia

IAD - PHL

IADPHL

Washington, D.C. Dulles Intl

Thu 8/28

6:34 am-10:44 am

1 stop4h 10m

Philadelphia

Sun 8/31

8:30 am-12:48 pm

1 stop4h 18m

$287

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Wed 8/13

6:05 am-1:05 pm

1 stop7h 00m

Philadelphia

Thu 8/14

5:35 pm-11:00 pm

1 stop5h 25m

$317

Washington, D.C.Philadelphia

DCA - PHL

DCAPHL

Washington, D.C. Reagan-National

Sun 9/14

1:00 pm-9:25 am

2 stops20h 25m

Philadelphia

Sun 9/21

6:30 pm-8:25 am

1 stop13h 55m

$365

Washington, D.C.Salisbury

DCA - SBY

DCASBY

Washington, D.C. Reagan-National

Sat 8/16

6:30 am-10:42 am

1 stop4h 12m

Salisbury-Ocean City

Wed 8/20

6:00 am-12:59 pm

1 stop6h 59m

$460

Washington, D.C.Salisbury

IAD - SBY

IADSBY

Washington, D.C. Dulles Intl

Sat 8/16

1:18 pm-8:31 pm

1 stop7h 13m

Salisbury-Ocean City

Wed 8/20

6:00 am-9:53 am

1 stop3h 53m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 24 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.

Reviews of airlines servicing Delaware

Get insights into the airlines that provide service to Delaware. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Delaware. Reviews last updated August 2, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Washington, D.C. to Delaware have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,983 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,904 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,915 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

  • What are the cheapest airlines to fly from Washington, D.C. to Delaware one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $110. Users have also found prices from $111 and $177 on Spirit Airlines and Delta, respectively.

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

    Most travelers choose Washington, D.C. Dulles Intl - Philadelphia, Baltimore/Washington - Philadelphia or Washington, D.C. Reagan-National - 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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