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$110+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
May 17 — May 241
Sat 5/17
Sat 5/24
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 May 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$210
(FlightHub)

One-way from

$110
(Frontier)

Popular in

June

Cheapest in

March

Average price

$437

Good round-trip deal

$410 or less

Good one-way deal

$200 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. 10% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 12, 2025.

This FlightHub deal was found by Cheapflights users on 5/11. 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 5/286:15 amPHL - PDX
1 stop19h 50mFrontier
Wed 6/46:35 amPDX - PHL
1 stop19h 35mFrontier
Deal found 5/11$210
This Mytrip deal was found by Cheapflights users on 5/11. 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 5/287:45 amPHL - PDX
2 stops31h 57mSpirit Airlines
Sat 5/315:40 pmPDX - PHL
1 stop9h 21mSpirit Airlines
Deal found 5/11$238
This CheapOair deal was found by Cheapflights users on 5/12. 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 5/227:10 amPHL - PDX
1 stop8h 55mMultiple Airlines
Tue 5/275:40 pmPDX - PHL
1 stop9h 15mMultiple Airlines
Deal found 5/12$256
This Booking.com deal was found by Cheapflights users on 5/11. 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 5/296:15 amPHL - GEG
1 stop7h 49mFrontier
Thu 6/511:48 amGEG - PHL
1 stop14h 22mFrontier
Deal found 5/11$260
This Delta deal was found by Cheapflights users on 5/12. 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 8/304:00 pmPHL - PDX
1 stop9h 20mDelta
Sun 9/75:20 pmPDX - PHL
1 stop9h 28mDelta
Deal found 5/12$267
This Mytrip deal was found by Cheapflights users on 5/12. 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 5/316:00 pmPHL - GEG
1 stop17h 38mMultiple Airlines
Thu 6/59:35 amGEG - PHL
2 stops17h 55mMultiple Airlines
Deal found 5/12$272
This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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.
Tue 8/196:30 amPHL - SEA
1 stop12h 23mSpirit Airlines
Wed 8/274:58 pmSEA - PHL
1 stop9h 34mSpirit Airlines
Deal found 5/12$306
This CheapOair deal was found by Cheapflights users on 5/12. 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 5/2912:23 pmPHL - SEA
2 stops14h 47mMultiple Airlines
Sun 6/16:25 amSEA - PHL
1 stop19h 45mMultiple Airlines
Deal found 5/12$307
This FlightHub deal was found by Cheapflights users on 5/12. 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 7/96:15 amPHL - SEA
1 stop20h 27mFrontier
Sun 7/136:25 amSEA - PHL
1 stop19h 44mFrontier
Deal found 5/12$308
This Delta deal was found by Cheapflights users on 5/12. 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 7/116:54 pmPHL - SEA
1 stop8h 05mDelta
Wed 7/166:00 amSEA - PHL
1 stop9h 04mDelta
Deal found 5/12$313
This American Airlines deal was found by Cheapflights users on 5/12. 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 8/125:28 pmPHL - GEG
1 stop8h 27mAmerican Airlines
Sat 8/306:00 amGEG - PHL
1 stop10h 38mAmerican Airlines
Deal found 5/12$315
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 5/266:30 amPHL - GEG
1 stop11h 17mUnited Airlines
Fri 5/306:25 pmGEG - PHL
1 stop7h 57mUnited Airlines
Deal found 5/11$318

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 May 12, 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

Wed 5/28

6:15 am-11:05 pm

1 stop19h 50m

Portland

Wed 6/4

6:35 am-5:10 am

1 stop19h 35m

$210

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Wed 5/28

7:45 am-12:42 pm

2 stops31h 57m

Portland

Sat 5/31

5:40 pm-6:01 am

1 stop9h 21m

$238

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Thu 5/22

7:10 am-1:05 pm

1 stop8h 55m

Portland

Tue 5/27

5:40 pm-5:55 am

1 stop9h 15m

$256

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 5/29

6:15 am-11:04 am

1 stop7h 49m

Spokane

Thu 6/5

11:48 am-5:10 am

1 stop14h 22m

$260

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Sat 8/30

4:00 pm-10:20 pm

1 stop9h 20m

Portland

Sun 9/7

5:20 pm-5:48 am

1 stop9h 28m

$267

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sat 5/31

6:00 pm-8:38 am

1 stop17h 38m

Spokane

Thu 6/5

9:35 am-6:30 am

2 stops17h 55m

$272

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 5/24

7:45 am-2:25 pm

2 stops33h 40m

Seattle/Tacoma Intl

Sun 6/1

6:00 am-6:30 am

2 stops45h 30m

$306

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Wed 7/9

6:15 am-11:42 pm

1 stop20h 27m

Seattle/Tacoma Intl

Fri 7/18

8:01 pm-5:09 am

1 stop30h 08m

$308

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 7/11

6:54 pm-11:59 pm

1 stop8h 05m

Seattle/Tacoma Intl

Wed 7/16

5:30 pm-5:55 am

1 stop9h 25m

$313

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Tue 8/12

5:28 pm-10:55 pm

1 stop8h 27m

Spokane

Sat 8/30

6:00 am-7:38 pm

1 stop10h 38m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 59 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 $403). 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 May 12, 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 May 12, 2025.

The most flights from PHL to USWA are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 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 May 12, 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
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,290 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,432 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 29 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 $110 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $131 and Delta from $134 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 Alaska Airlines (81%), Hawaiian Airlines (81%) or Air Tahiti Nui (80%) 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 $1,019, our data indicates the cheapest price to be $164. The most popular route (Philadelphia - Seattle/Tacoma Intl), is priced around $212.

  • 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 $403). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$115Average$261FlexibilityNo cancel feeOn-time62%
FrontierCheapest$129Average$236FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$139Average$242FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$202Average$313FlexibilityNo cancel feeOn-time83%
DeltaCheapest$286Average$482FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$287Average$507FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$290Average$545FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$297Average$484FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$305Average$476FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$326Average$466FlexibilityNo cancel feeOn-time63%

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