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Delaware

Cheap flights from Washington to Delaware - Compare and Save

SEA — ILG
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheap flight deals from Washington to Delaware

Keep the following information in mind while searching for Washington to Delaware flight deals. Data was last updated August 2, 2025.

Round-trip from

$211
(Delta)

One-way from

$106
(Delta)

Popular in

December

Cheapest in

March

Average price

$442
From Washington to Delaware
Search Deals
One-way flight from Washington to Delaware
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 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 to Delaware

Cheapest flights from Washington to Delaware
Explore the most affordable flight options available from Washington to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:05 pmPDX - PHL
1 stop9h 40mDelta
Mon 8/256:00 amPHL - PDX
1 stop7h 40mDelta
Deal found 7/30$211
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:01 pmPDX - PHL
1 stop7h 08mFrontier
Wed 8/136:15 amPHL - PDX
1 stop8h 15mFrontier
Deal found 7/30$258
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2511:10 pmPDX - PHL
1 stop6h 34mDelta
Thu 8/286:00 amPHL - PDX
1 stop7h 40mDelta
Deal found 8/1$263
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:10 amPDX - PHL
1 stop7h 10mSouthwest
Thu 9/44:25 pmPHL - PDX
1 stop9h 40mSouthwest
Deal found 7/31$264
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/227:05 pmPDX - PHL
1 stop7h 40mDelta
Sun 8/245:25 amPHL - PDX
1 stop7h 57mDelta
Deal found 7/30$265
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.
Fri 8/228:46 amPDX - PHL
2 stops22h 10mMultiple Airlines
Tue 8/269:00 amPHL - PDX
1 stop12h 57mMultiple Airlines
Deal found 7/31$267
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 8/216:27 amPDX - PHL
1 stop19h 27mMultiple Airlines
Tue 8/269:00 amPHL - PDX
1 stop12h 57mMultiple Airlines
Deal found 7/30$272
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/167:01 pmPDX - PHL
1 stop7h 08mFrontier
Fri 8/296:25 amPHL - PDX
1 stop7h 58mFrontier
Deal found 8/1$275
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/167:01 pmPDX - PHL
1 stop7h 08mMultiple Airlines
Wed 8/209:00 amPHL - PDX
1 stop12h 57mMultiple Airlines
Deal found 7/31$276
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:01 pmPDX - PHL
1 stop7h 08mFrontier
Fri 8/151:02 pmPHL - PDX
1 stop14h 13mFrontier
Deal found 8/1$278
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/207:52 pmPDX - PHL
1 stop25h 07mSpirit Airlines
Mon 8/259:00 amPHL - PDX
1 stop12h 57mSpirit Airlines
Deal found 8/1$279
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:00 amSEA - PHL
1 stop13h 43mMultiple Airlines
Thu 10/27:22 amPHL - SEA
Nonstop5h 56mMultiple Airlines
Deal found 7/31$283

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 to Delaware that are best for you.

Fly from

Washington

Fly to

Delaware

Route

Depart

Return

Price

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Fri 8/22

5:05 pm-5:45 am

1 stop9h 40m

Philadelphia

Mon 8/25

6:00 am-10:40 am

1 stop7h 40m

$211

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Tue 8/5

7:01 pm-5:09 am

1 stop7h 08m

Philadelphia

Wed 8/13

6:15 am-11:30 am

1 stop8h 15m

$258

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Mon 8/25

11:10 pm-8:44 am

1 stop6h 34m

Philadelphia

Tue 8/26

2:55 pm-8:59 pm

1 stop9h 04m

$263

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Thu 8/28

6:10 am-4:20 pm

1 stop7h 10m

Philadelphia

Thu 9/4

4:25 pm-11:05 pm

1 stop9h 40m

$264

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Fri 8/22

7:05 pm-5:45 am

1 stop7h 40m

Philadelphia

Sun 8/24

5:25 am-10:22 am

1 stop7h 57m

$265

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Fri 8/22

8:46 am-9:56 am

2 stops22h 10m

Philadelphia

Tue 8/26

9:00 am-6:57 pm

1 stop12h 57m

$267

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Thu 8/21

6:27 am-4:54 am

1 stop19h 27m

Philadelphia

Tue 8/26

9:00 am-6:57 pm

1 stop12h 57m

$272

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Sat 8/16

7:01 pm-5:09 am

1 stop7h 08m

Philadelphia

Fri 8/29

6:25 am-11:23 am

1 stop7h 58m

$275

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Sat 8/16

7:01 pm-5:09 am

1 stop7h 08m

Philadelphia

Wed 8/20

9:00 am-6:57 pm

1 stop12h 57m

$276

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Tue 8/5

7:01 pm-5:09 am

1 stop7h 08m

Philadelphia

Fri 8/15

1:02 pm-12:15 am

1 stop14h 13m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from Washington 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 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.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Washington to Delaware. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,904 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 State of Washington to Delaware one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $106. However, be on the lookout for offers from Spirit Airlines and Frontier, as they are both options that can get you from State of Washington to Delaware for a low price.

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

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

  • How can I find direct flights from Washington to Delaware?

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

  • Can I find deals for business class flights from Washington to Delaware?

    Yes. Cheapflights offers flight deals from Washington 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 to Delaware

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