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$107+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This CheapOair deal was found by Cheapflights users on 12/3. 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 12/188:36 pmPHL - SEA
1 stop18h 54mFrontier
Tue 12/306:33 pmSEA - PHL
1 stop8h 07mFrontier
Deal found 12/3$259
This CheapOair deal was found by Cheapflights users on 12/4. 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.
Sun 12/218:36 pmPHL - SEA
1 stop18h 54mFrontier
Thu 1/11:25 pmSEA - PHL
1 stop13h 06mFrontier
Deal found 12/4$289
This CheapOair deal was found by Cheapflights users on 12/4. 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.
Mon 12/228:36 pmPHL - SEA
1 stop18h 54mFrontier
Wed 12/312:46 pmSEA - PHL
1 stop11h 54mFrontier
Deal found 12/4$299
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Mon 12/227:10 amPHL - SEA
1 stop30h 01mFrontier
Tue 12/306:33 pmSEA - PHL
1 stop8h 07mFrontier
Deal found 12/3$305
This CheapOair deal was found by Cheapflights users on 12/4. 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.
Fri 12/197:10 amPHL - SEA
1 stop31h 21mFrontier
Thu 12/251:25 pmSEA - PHL
1 stop13h 06mFrontier
Deal found 12/4$319
This Booking.com deal was found by Cheapflights users on 12/3. 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.
Fri 12/198:36 pmPHL - PDX
1 stop18h 16mFrontier
Thu 12/2512:47 pmPDX - PHL
1 stop13h 44mFrontier
Deal found 12/3$321
This Mytrip deal was found by Cheapflights users on 12/4. 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.
Sun 12/218:36 pmPHL - SEA
1 stop18h 54mFrontier
Fri 1/22:54 pmSEA - PHL
1 stop11h 37mFrontier
Deal found 12/4$331
This CheapOair deal was found by Cheapflights users on 12/3. 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.
Fri 12/58:36 pmPHL - SEA
1 stop18h 17mFrontier
Mon 12/89:45 amSEA - PHL
1 stop11h 49mFrontier
Deal found 12/3$334
This Southwest deal was found by Cheapflights users on 12/3. 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 12/256:35 amPHL - SEA
1 stop15h 05mSouthwest
Wed 1/76:05 amSEA - PHL
2 stops11h 15mSouthwest
Deal found 12/3$336
This Delta deal was found by Cheapflights users on 12/1. 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.
Wed 12/176:18 amPHL - GEG
1 stop10h 00mDelta
Wed 12/245:00 amGEG - PHL
2 stops26h 43mDelta
Deal found 12/1$339
This eDestinos deal was found by Cheapflights users on 12/3. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 amPHL - PDX
3 stops34h 24mMultiple Airlines
Mon 1/127:10 amPDX - PHL
2 stops14h 21mMultiple Airlines
Deal found 12/3$340
This Booking.com deal was found by Cheapflights users on 12/2. 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 12/228:36 pmPHL - PDX
1 stop18h 07mFrontier
Thu 1/112:47 pmPDX - PHL
1 stop13h 44mFrontier
Deal found 12/2$343

Find flight deals from Philadelphia to Washington

Keep the following information in mind while searching for Philadelphia to Washington flight deals. Data was last updated December 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$193
(American Airlines)

One-way from

$107
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$496

Good round-trip deal

$348 or less

Good one-way deal

$262 or less
Provider with most accurate pricing for Philadelphia-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Seattle/Tacoma Intl flights.
Search Deals
From Philadelphia to Washington
Search Deals
One-way flight from Philadelphia to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to Washington.
Search Deals
Price to beat on a one-way flight from Philadelphia to Washington.
Search Deals

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 December 4, 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

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Wed 1/21

5:40 am-1:25 pm

2 stops10h 45m

Spokane

Tue 1/27

7:05 am-10:00 pm

2 stops11h 55m

$207

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Tue 1/13

12:41 pm-11:21 pm

2 stops13h 40m

Spokane

Sat 1/17

2:00 pm-11:26 pm

1 stop6h 26m

$229

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Wed 1/21

6:00 am-12:37 pm

2 stops9h 37m

Spokane

Mon 1/26

4:55 pm-9:50 am

2 stops13h 55m

$234

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 1/29

6:00 am-1:03 pm

2 stops10h 03m

Spokane

Tue 2/3

7:30 pm-9:23 am

2 stops10h 53m

$234

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sat 1/24

7:06 pm-12:23 am

1 stop8h 17m

Spokane

Sat 1/31

7:30 am-6:03 pm

1 stop7h 33m

$250

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Mon 1/19

6:00 am-1:03 pm

2 stops10h 03m

Spokane

Thu 1/29

1:15 pm-11:53 pm

1 stop7h 38m

$256

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sat 1/24

12:16 pm-8:53 pm

2 stops11h 37m

Spokane

Sat 1/31

11:25 am-11:13 pm

2 stops8h 48m

$261

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 2/19

6:32 am-11:49 am

1 stop8h 17m

Seattle/Tacoma Intl

Tue 2/24

11:59 pm-2:10 pm

2 stops11h 11m

$262

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Wed 1/14

5:40 am-11:45 am

1 stop9h 05m

Spokane

Sun 1/18

1:15 pm-11:53 pm

1 stop7h 38m

$267

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Tue 2/17

6:50 pm-12:09 am

1 stop8h 19m

Seattle/Tacoma Intl

Fri 2/20

8:30 am-7:25 pm

1 stop7h 55m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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, October is the cheapest month in which you can book a flight from Philadelphia to State of Washington (average of $148). Flying from Philadelphia to State of Washington in April is currently the most expensive (average of $237). 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 December 4, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 18% on flights from Philadelphia to State of Washington by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Philadelphia to State of Washington?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Washington. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to State of Washington flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 4, 2025.

The most flights from PHL to USWA are scheduled on a Thursday (10 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

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 December 4, 2025.
Read through reviews of airlines operating flights from Philadelphia to Washington, such as Alaska Airlines, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Alaska Airlines
8.0
Very good
11,402 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
United Airlines
7.4
Good
9,066 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
American Airlines
7.2
Good
11,047 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Frontier
5.8
Fair
3,090 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.

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 37 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Philadelphia to State of Washington?

    Airlines like Southwest, Delta, and United Airlines fly from Philadelphia to State of Washington in about 8h 17m. The time it takes to get you to your destination can typically vary by up to 5h 23m. The distance from Philadelphia to State of Washington is about 2370 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $85 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $107 and Delta from $114 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 - Pasco Tri Cities 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 American Airlines (88%), British Airways (86%) or Alaska Airlines (81%) 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 $1,181, our data indicates the cheapest price to be $148. The most popular route (Philadelphia - Seattle/Tacoma Intl), is priced around $154.

  • 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, October is the cheapest month in which you can book a flight from Philadelphia to State of Washington (average of $148). Flying from Philadelphia to State of Washington in April is currently the most expensive (average of $237). 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Philadelphia to Washington

Discover the top 9 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$115Average$254FlexibilityNo cancel feeOn-time65%
FrontierCheapest$134Average$295FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$442FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$238Average$367FlexibilityNo cancel feeOn-time83%
Hawaiian AirlinesCheapest$257Average$474FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$276Average$488FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$277Average$541FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$277Average$464FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$296Average$463FlexibilityNo cancel feeOn-time63%

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