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$139+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$153
(FlightHub)

One-way from

$139
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$387

Good round-trip deal

$390 or less

Good one-way deal

$230 or less
Provider with most accurate pricing for Philadelphia-Seattle/Tacoma Intl flight deals.
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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 ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This FlightHub deal was found by Cheapflights users on 3/27. 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 5/110:08 pmPHL - PDX
1 stop14h 49mSpirit Airlines
Tue 5/67:01 pmPDX - PHL
1 stop7h 51mSpirit Airlines
Deal found 3/27$153
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Thu 4/37:30 amPHL - PDX
1 stop28h 17mMultiple Airlines
Thu 4/102:32 pmPDX - PHL
1 stop12h 20mMultiple Airlines
Deal found 3/27$222
This Frontier deal was found by Cheapflights users on 3/27. 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.
Fri 5/96:42 pmPHL - PDX
1 stop8h 56mFrontier
Sat 5/106:20 amPDX - PHL
1 stop11h 55mFrontier
Deal found 3/27$238
This CheapOair deal was found by Cheapflights users on 3/26. 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.
Thu 4/37:30 amPHL - SEA
1 stop30h 09mFrontier
Mon 4/71:56 pmSEA - PHL
1 stop12h 33mFrontier
Deal found 3/26$288
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:03 pmPHL - SEA
2 stops19h 32mSpirit Airlines
Thu 5/18:56 pmSEA - PHL
2 stops16h 42mSpirit Airlines
Deal found 3/27$291
This Travelocity deal was found by Cheapflights users on 3/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:04 amPHL - SEA
Nonstop5h 55mMultiple Airlines
Wed 5/73:20 pmSEA - PHL
1 stop11h 41mMultiple Airlines
Deal found 3/27$292
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/266:50 amPHL - SEA
1 stop10h 47mUnited Airlines
Sat 5/311:59 pmSEA - PHL
1 stop8h 54mUnited Airlines
Deal found 3/27$297
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 4/256:46 pmPHL - SEA
Nonstop6h 13mAmerican Airlines
Mon 4/2810:59 pmSEA - PHL
Nonstop5h 07mAmerican Airlines
Deal found 3/27$302
This Delta deal was found by Cheapflights users on 3/27. 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 4/178:05 amPHL - SEA
1 stop9h 17mDelta
Tue 4/2210:55 pmSEA - PHL
1 stop6h 56mDelta
Deal found 3/27$322
This Delta deal was found by Cheapflights users on 3/26. 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 5/16:55 pmPHL - GEG
1 stop8h 01mDelta
Mon 5/56:59 pmGEG - PHL
1 stop7h 51mDelta
Deal found 3/26$323
This Mytrip deal was found by Cheapflights users on 3/26. 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.
Wed 5/76:00 pmPHL - GEG
1 stop17h 45mMultiple Airlines
Sun 5/119:35 amGEG - PHL
2 stops41h 55mMultiple Airlines
Deal found 3/26$335
This Booking.com deal was found by Cheapflights users on 3/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/21:02 pmPHL - GEG
1 stop25h 01mFrontier
Sun 6/811:48 amGEG - PHL
1 stop14h 22mFrontier
Deal found 3/25$338

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 March 28, 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

Thu 5/1

10:08 pm-9:57 am

1 stop14h 49m

Portland

Tue 5/6

7:01 pm-5:52 am

1 stop7h 51m

$153

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Fri 5/9

6:42 pm-12:38 am

1 stop8h 56m

Portland

Sat 5/10

6:20 am-9:15 pm

1 stop11h 55m

$238

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Fri 4/18

8:15 am-8:47 am

1 stop27h 32m

Portland

Sat 5/3

7:01 pm-5:52 am

1 stop7h 51m

$255

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 4/15

10:08 pm-11:35 am

1 stop16h 27m

Seattle/Tacoma Intl

Tue 4/22

12:30 pm-5:52 am

1 stop14h 22m

$288

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 5/9

6:42 pm-12:44 am

1 stop9h 02m

Seattle/Tacoma Intl

Mon 5/19

8:22 pm-6:52 am

1 stop31h 30m

$290

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 4/30

7:04 am-9:59 am

Nonstop5h 55m

Seattle/Tacoma Intl

Wed 5/7

3:20 pm-6:01 am

1 stop11h 41m

$292

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 4/26

6:50 am-2:37 pm

1 stop10h 47m

Seattle/Tacoma Intl

Sat 5/3

11:59 pm-11:53 am

1 stop8h 54m

$297

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 4/25

6:46 pm-9:59 pm

Nonstop6h 13m

Seattle/Tacoma Intl

Mon 4/28

10:59 pm-7:06 am

Nonstop5h 07m

$302

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 4/17

8:05 am-2:22 pm

1 stop9h 17m

Seattle/Tacoma Intl

Tue 4/22

10:55 pm-8:51 am

1 stop6h 56m

$322

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 5/1

6:55 pm-11:56 pm

1 stop8h 01m

Spokane

Mon 5/5

6:59 pm-5:50 am

1 stop7h 51m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 60 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 March 28, 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.

Weekly flight availability from Philadelphia to State of Washington

Explore weekly flight availability from Philadelphia to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2025.

The most flights from PHL to USWA are scheduled on a Thursday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

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 March 28, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Food

7.1

Overall

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 28 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 $139 on American Airlines. Other airlines that offer cheap prices include JetBlue from $140 and Spirit Airlines from $140 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 (83%), Alaska Airlines (82%) or Hawaiian Airlines (82%) 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 $993, our data indicates the cheapest price to be $163. The most popular route (Philadelphia - Seattle/Tacoma Intl), is priced around $190.

  • 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.

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$115Average$261FlexibilityNo cancel feeOn-time62%
FrontierCheapest$132Average$241FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$136Average$247FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$168Average$457FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$202Average$317FlexibilityNo cancel feeOn-time83%
DeltaCheapest$277Average$493FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$286Average$548FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$288Average$525FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$307Average$470FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$326Average$476FlexibilityNo cancel feeOn-time63%
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