Delaware

$85+ Cheap flights from Washington 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ILG
Jan 26 — Feb 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Delaware 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 Washington to Delaware

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Delaware (USDE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$299
(Mytrip)

One-way from

$85
(CheapOair)
From Washington to Delaware
One-way flight from Washington to Delaware

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 January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/21. 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 2/75:55 pmSEA - PHL
2 stops21h 19mSpirit Airlines
Mon 2/1010:05 pmPHL - SEA
2 stops21h 55mSpirit Airlines
Deal found 1/21$299
This Delta deal was found by Cheapflights users on 1/21. 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.
Thu 3/65:30 amSEA - PHL
1 stop8h 58mDelta
Tue 3/187:00 amPHL - SEA
1 stop8h 25mDelta
Deal found 1/21$307
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Thu 5/156:00 amSEA - PHL
1 stop12h 15mMultiple Airlines
Mon 5/2612:10 pmPHL - SEA
1 stop8h 17mMultiple Airlines
Deal found 1/20$308
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 2/2411:10 pmSEA - PHL
Nonstop4h 53mAmerican Airlines
Fri 2/286:49 pmPHL - SEA
Nonstop6h 20mAmerican Airlines
Deal found 1/21$317
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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.
Wed 6/256:45 pmPDX - PHL
1 stop13h 25mSun Country Air
Mon 6/3012:05 pmPHL - PDX
1 stop13h 41mSun Country Air
Deal found 1/20$324
This FlightHub deal was found by Cheapflights users on 1/20. 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 2/128:28 pmPDX - PHL
2 stops16h 39mMultiple Airlines
Sat 2/228:15 amPHL - PDX
1 stop27h 25mMultiple Airlines
Deal found 1/20$326
This Delta deal was found by Cheapflights users on 1/21. 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.
Wed 3/51:10 pmGEG - PHL
1 stop8h 39mDelta
Mon 3/176:00 amPHL - GEG
1 stop9h 58mDelta
Deal found 1/21$327
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Mon 2/178:28 pmPDX - PHL
3 stops16h 39mSpirit Airlines
Sun 2/238:30 pmPHL - PDX
3 stops39h 51mSpirit Airlines
Deal found 1/20$332
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/69:15 amSEA - PHL
Nonstop5h 10mAlaska Airlines
Thu 3/207:20 amPHL - SEA
Nonstop6h 00mAlaska Airlines
Deal found 1/21$337
This Delta deal was found by Cheapflights users on 1/19. 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.
Sat 2/82:00 pmPDX - PHL
1 stop6h 53mDelta
Mon 2/106:40 pmPHL - PDX
1 stop8h 11mDelta
Deal found 1/19$349
This Sun Country Air deal was found by Cheapflights users on 1/20. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2611:59 pmSEA - PHL
1 stop8h 11mSun Country Air
Sun 8/1012:05 pmPHL - SEA
1 stop13h 45mSun Country Air
Deal found 1/20$355
This CheapOair deal was found by Cheapflights users on 1/21. 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.
Wed 4/99:54 amPDX - PHL
1 stop16h 21mFrontier
Sun 4/137:30 amPHL - PDX
1 stop28h 17mFrontier
Deal found 1/21$356

Find flights from Washington to Delaware within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Fri 2/7

5:55 pm-6:14 pm

2 stops21h 19m

Philadelphia

Mon 2/10

10:05 pm-5:00 pm

2 stops21h 55m

$299

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 3/6

5:30 am-5:28 pm

1 stop8h 58m

Philadelphia

Tue 3/18

7:00 am-12:25 pm

1 stop8h 25m

$307

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 5/15

6:00 am-9:15 pm

1 stop12h 15m

Philadelphia

Mon 5/26

12:10 pm-5:27 pm

1 stop8h 17m

$308

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Mon 2/24

11:10 pm-7:03 am

Nonstop4h 53m

Philadelphia

Fri 2/28

6:49 pm-10:09 pm

Nonstop6h 20m

$317

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 3/6

2:02 pm-5:05 am

1 stop12h 03m

Philadelphia

Thu 3/20

6:40 am-12:02 pm

1 stop8h 22m

$320

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Wed 6/25

6:45 pm-11:10 am

1 stop13h 25m

Philadelphia

Mon 6/30

12:05 pm-10:46 pm

1 stop13h 41m

$324

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Wed 2/12

8:28 pm-4:07 pm

2 stops16h 39m

Philadelphia

Sat 2/22

8:15 am-8:40 am

1 stop27h 25m

$326

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Wed 3/5

1:10 pm-12:49 am

1 stop8h 39m

Philadelphia

Mon 3/17

6:00 am-12:58 pm

1 stop9h 58m

$327

PortlandPhiladelphia

PDX - PHL

PDXPHL

Portland

Mon 2/17

8:28 pm-4:07 pm

3 stops16h 39m

Philadelphia

Sun 2/23

8:30 pm-9:21 am

3 stops39h 51m

$332

SeattlePhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Mon 3/3

9:15 am-5:25 pm

Nonstop5h 10m

Philadelphia

Tue 3/18

6:25 pm-9:51 pm

Nonstop6h 26m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 58 results
1
2
3
...
6

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.

Travel insights for flights from Washington to Delaware

Get recent, data-driven insights about flights from Washington to Delaware including ideal travel times, pricing trends, and more.

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 January 21, 2025.
Peruse reviews from past customers who have flown with United Airlines, Alaska Airlines and American Airlines from Washington to Delaware to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,662 reviews
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,706 reviews
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,521 reviews
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
3,201 reviews
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
8,985 reviews
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Spirit Airlines, with whom users have recently found tickets for as low as $85. However, be on the lookout for offers from Frontier and Sun Country Air, 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

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 Washington to Delaware

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