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$135+ Cheap flights from Philadelphia (PHL) to Washington

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Philadelphia to Washington

Keep the following information in mind while searching for Philadelphia to Washington flight deals. Data was last updated April 17, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$178
(Frontier)

One-way from

$135
(Cheapflightsfares)

Popular in

July

Cheapest in

March

Average price

$422

Good round-trip deal

$385 or less

Good one-way deal

$210 or less
Provider with most accurate pricing for Philadelphia-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Seattle/Tacoma Intl flights.
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From Philadelphia to Washington
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One-way flight from Philadelphia to Washington
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Highest demand for flights based on searches. 14% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Philadelphia to Washington.
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Price to beat on a one-way flight from Philadelphia to Washington.
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Find flight deals from Philadelphia to Washington

Cheapest flights from Philadelphia to Washington
Explore the most affordable flight options available from Philadelphia to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Frontier deal was found by Cheapflights users on 4/17. 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.
Sat 5/246:15 amPHL - PDX
1 stop8h 33mFrontier
Sat 5/3112:30 pmPDX - PHL
1 stop13h 37mFrontier
Deal found 4/17$178
This CheapOair deal was found by Cheapflights users on 4/15. 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 5/246:15 amPHL - PDX
1 stop30h 54mMultiple Airlines
Wed 6/41:37 pmPDX - PHL
1 stop13h 24mMultiple Airlines
Deal found 4/15$210
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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.
Thu 4/2410:08 pmPHL - PDX
1 stop14h 04mSpirit Airlines
Wed 4/307:01 pmPDX - PHL
1 stop7h 51mSpirit Airlines
Deal found 4/16$244
This Mytrip deal was found by Cheapflights users on 4/16. 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 5/110:08 pmPHL - BLI
1 stop28h 30mMultiple Airlines
Mon 5/59:00 amBLI - PHL
1 stop28h 22mMultiple Airlines
Deal found 4/16$261
This Delta deal was found by Cheapflights users on 4/16. 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.
Tue 5/135:00 pmPHL - PDX
1 stop8h 01mDelta
Sat 5/2411:15 pmPDX - PHL
1 stop6h 46mDelta
Deal found 4/16$272
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/101:10 pmPHL - PDX
2 stops10h 50mUnited Airlines
Tue 5/136:30 pmPDX - PHL
1 stop8h 09mUnited Airlines
Deal found 4/17$292
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/92:36 pmPHL - SEA
2 stops12h 34mSpirit Airlines
Mon 5/123:20 pmSEA - PHL
1 stop11h 41mSpirit Airlines
Deal found 4/17$293
This Delta deal was found by Cheapflights users on 4/17. 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 6/116:45 pmPHL - SEA
1 stop8h 19mDelta
Fri 7/45:30 amSEA - PHL
1 stop9h 03mDelta
Deal found 4/17$297
This Frontier deal was found by Cheapflights users on 4/17. 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.
Thu 4/2412:40 pmPHL - SEA
1 stop15h 04mFrontier
Sun 4/276:52 pmSEA - PHL
1 stop8h 55mFrontier
Deal found 4/17$300
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/61:02 pmPHL - SEA
1 stop14h 32mMultiple Airlines
Tue 6/109:25 pmSEA - PHL
Nonstop5h 15mMultiple Airlines
Deal found 4/17$303
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 6/36:45 pmPHL - SEA
Nonstop6h 05mAmerican Airlines
Thu 6/1210:41 pmSEA - PHL
Nonstop5h 07mAmerican Airlines
Deal found 4/17$305
This Delta deal was found by Cheapflights users on 4/17. 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 5/243:00 pmPHL - GEG
1 stop7h 51mDelta
Tue 5/275:40 pmGEG - PHL
2 stops12h 29mDelta
Deal found 4/17$312

Cheapflights Fare Finder

Customize your flight search to find flights from Philadelphia to Washington 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 April 17, 2025.
Use the filters below to find and compare flights from Philadelphia to Washington that are best for you.

Fly from

Philadelphia

Fly to

Washington

Route

Depart

Return

Price

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Sat 5/24

6:15 am-11:48 am

1 stop8h 33m

Portland

Sat 5/31

12:30 pm-5:07 am

1 stop13h 37m

$178

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Sat 5/31

6:15 am-11:29 am

1 stop8h 14m

Portland

Tue 6/3

5:40 pm-5:55 am

1 stop9h 15m

$215

PhiladelphiaBellingham

PHL - BLI

PHLBLI

Philadelphia

Thu 5/1

10:08 pm-11:38 pm

1 stop28h 30m

Bellingham

Mon 5/5

9:00 am-4:22 pm

1 stop28h 22m

$261

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Tue 5/13

5:00 pm-10:01 pm

1 stop8h 01m

Portland

Sat 5/24

11:15 pm-12:00 pm

1 stop9h 45m

$272

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Sat 5/10

1:10 pm-9:00 pm

2 stops10h 50m

Portland

Tue 5/13

6:30 pm-5:39 am

1 stop8h 09m

$292

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 5/9

2:36 pm-12:10 am

2 stops12h 34m

Seattle/Tacoma Intl

Mon 5/12

3:20 pm-6:01 am

1 stop11h 41m

$293

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Wed 5/7

6:00 pm-12:42 pm

1 stop21h 42m

Portland

Tue 5/13

1:37 pm-5:55 am

1 stop13h 18m

$296

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 6/11

6:45 pm-12:04 am

1 stop8h 19m

Seattle/Tacoma Intl

Fri 7/4

5:30 am-5:33 pm

1 stop9h 03m

$297

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 4/24

12:40 pm-12:44 am

1 stop15h 04m

Seattle/Tacoma Intl

Sun 4/27

6:52 pm-6:47 am

1 stop8h 55m

$300

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 6/6

1:02 pm-12:34 am

1 stop14h 32m

Seattle/Tacoma Intl

Tue 6/10

9:25 pm-5:40 am

Nonstop5h 15m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 56 results
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Best time to book a flight from Philadelphia to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Philadelphia 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 Philadelphia to Washington

What is the cheapest month to book a flight from Philadelphia to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to State of Washington (average of $238). Flying from Philadelphia to State of Washington in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to WA?

Find hourly flight availability from Philadelphia to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to State of Washington as you normally would.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated April 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Philadelphia to Washington by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,382 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Washington?

    If you book a flight to Washington from Philadelphia, you will be flying from Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia.

  • How popular is this Philadelphia to State of Washington flight route?

    This flight path from Philadelphia to Washington was viewed by 31 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Philadelphia to State of Washington one-way?

    One-way options have recently been found by users for as low as $135 on Spirit Airlines. Other airlines that offer cheap prices include Delta from $139 and Frontier from $148 one-way.

  • What are the most popular routes from Philadelphia to State of Washington?

    Most travelers choose Philadelphia - Seattle/Tacoma Intl, Philadelphia - Portland or Philadelphia - Spokane when deciding on the best route from Philadelphia to State of Washington.

  • What are the most reliable airlines from Philadelphia to State of Washington?

    Consider Air Tahiti Nui (85%), Alaska Airlines (83%) or Hawaiian Airlines (83%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to State of Washington.

  • What are the cheapest flights from Philadelphia to State of Washington?

    Looking for the cheapest flight from Philadelphia to State of Washington? While on average our users pay $825, our data indicates the cheapest price to be $165. The most popular route (Philadelphia - Seattle/Tacoma Intl), is priced around $203.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to State of Washington (average of $238). Flying from Philadelphia to State of Washington in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Philadelphia to Washington

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Top 10 airlines flying from Philadelphia to Washington

Discover the top 10 airlines that operate flights from Philadelphia to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$115Average$261FlexibilityNo cancel feeOn-time62%
FrontierCheapest$129Average$239FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$139Average$245FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$199Average$315FlexibilityNo cancel feeOn-time83%
DeltaCheapest$285Average$491FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$289Average$549FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$296Average$509FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$297Average$477FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$307Average$465FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$326Average$466FlexibilityNo cancel feeOn-time63%

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