HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$105+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Washington 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 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 February 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:25 pm
PHL
-
PDX
1 stop17h 38m
Frontier
Sat 5/1612:27 pm
PDX
-
PHL
1 stop14h 07m
Frontier
Deal found 2/3$201
This CheapOair deal was found by Cheapflights users on 2/3. 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 4/168:25 pm
PHL
-
PDX
1 stop17h 38m
Frontier
Tue 4/211:48 pm
PDX
-
PHL
1 stop12h 46m
Frontier
Deal found 2/3$211
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Sat 5/165:15 pm
PHL
-
PDX
Nonstop5h 43m
Alaska Airlines
Sat 5/308:00 am
PDX
-
PHL
Nonstop5h 02m
Alaska Airlines
Deal found 2/3$217
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Wed 4/158:25 pm
PHL
-
PDX
1 stop17h 38m
Frontier
Thu 4/2311:48 am
PDX
-
PHL
1 stop14h 46m
Frontier
Deal found 2/3$232
This Expedia deal was found by Cheapflights users on 2/5. 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.
Sat 4/258:25 pm
PHL
-
GEG
1 stop17h 06m
Multiple Airlines
Wed 4/297:41 pm
GEG
-
PHL
1 stop7h 21m
Multiple Airlines
Deal found 2/5$234
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:37 pm
PHL
-
GEG
1 stop8h 40m
United Airlines
Tue 3/106:00 am
GEG
-
PHL
1 stop8h 14m
United Airlines
Deal found 2/3$237
This United Airlines deal was found by Cheapflights users on 2/5. 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.
Wed 5/275:00 pm
PHL
-
PDX
1 stop8h 23m
United Airlines
Sat 5/302:12 pm
PDX
-
PHL
1 stop7h 33m
United Airlines
Deal found 2/5$237
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Sun 2/225:42 pm
PHL
-
SEA
1 stop20h 37m
Frontier
Thu 2/261:16 pm
SEA
-
PHL
1 stop25h 39m
Frontier
Deal found 2/3$240
This United Airlines deal was found by Cheapflights users on 2/6. 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.
Tue 3/1712:15 pm
PHL
-
PDX
2 stops11h 55m
United Airlines
Tue 3/2411:10 pm
PDX
-
PHL
1 stop7h 37m
United Airlines
Deal found 2/6$242
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:25 pm
PHL
-
PDX
1 stop17h 44m
Frontier
Thu 3/1212:04 pm
PDX
-
PHL
1 stop14h 27m
Frontier
Deal found 2/3$245
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:25 pm
PHL
-
PDX
1 stop17h 38m
Frontier
Sun 5/1711:48 am
PDX
-
PHL
2 stops33h 41m
Frontier
Deal found 2/3$247
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/611:00 am
PHL
-
PDX
2 stops24h 28m
Frontier
Mon 3/912:04 pm
PDX
-
PHL
1 stop14h 27m
Frontier
Deal found 2/5$249

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 February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$201
(Kiwi.com)

One-way from

$105
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$347

Good round-trip deal

$338 or less

Good one-way deal

$212 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. 13% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 6, 2026.
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

Tue 3/3

3:37 pm-9:17 pm

1 stop8h 40m

Spokane

Tue 3/10

6:00 am-5:14 pm

1 stop8h 14m

$237

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Tue 3/17

3:30 pm-9:10 pm

1 stop8h 40m

Portland

Wed 3/25

11:10 pm-9:47 am

1 stop7h 37m

$237

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sat 4/25

6:10 am-1:03 pm

1 stop9h 53m

Spokane

Wed 4/29

3:30 pm-5:35 am

2 stops11h 05m

$242

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Wed 4/1

11:36 am-9:11 pm

2 stops12h 35m

Spokane

Tue 4/14

5:05 am-3:47 pm

1 stop7h 42m

$242

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Sun 5/10

6:34 pm-11:50 pm

1 stop8h 16m

Portland

Sat 5/16

11:55 pm-12:17 pm

1 stop9h 22m

$257

PhiladelphiaPortland

PHL - PDX

PHLPDX

Philadelphia

Sat 6/13

6:45 pm-11:52 pm

1 stop8h 07m

Portland

Tue 6/16

10:40 pm-10:30 am

1 stop8h 50m

$271

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 5/15

6:59 am-9:50 am

Nonstop5h 51m

Seattle/Tacoma Intl

Tue 5/26

9:27 pm-5:44 am

Nonstop5h 17m

$277

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 5/15

6:59 am-9:50 am

Nonstop5h 51m

Seattle/Tacoma Intl

Mon 5/25

9:27 pm-5:44 am

Nonstop5h 17m

$277

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 5/9

6:59 am-9:50 am

Nonstop5h 51m

Seattle/Tacoma Intl

Thu 5/14

9:27 pm-5:44 am

Nonstop5h 17m

$277

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Sat 5/9

6:59 am-9:50 am

Nonstop5h 51m

Seattle/Tacoma Intl

Wed 5/13

9:27 pm-5:44 am

Nonstop5h 17m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 60 results
1
2
3
...
6

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 July is currently the most expensive (average of $224). 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 February 6, 2026.

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.

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 February 6, 2026.
Read through reviews of airlines operating flights from Philadelphia to Washington, such as Alaska Airlines, Delta, and Hawaiian 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
11,845 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,845 reviews
Alaska Airlines
8.0
Very good
11,845 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,158 reviews
Alaska Airlines
8.0
Very good
11,845 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,831 reviews
Alaska Airlines
8.0
Very good
11,845 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
American Airlines
7.2
Good
11,244 reviews
Alaska Airlines
8.0
Very good
11,845 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Frontier
5.7
Fair
3,054 reviews
Alaska Airlines
8.0
Very good
11,845 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 United Airlines, Frontier, and Delta fly from Philadelphia to State of Washington in about 8h 40m. The time it takes to get you to your destination can typically vary by up to 11h 57m. The distance from Philadelphia to State of Washington is about 2147 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 $91 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 - 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 American Airlines (57%), Qatar Airways (57%) or British Airways (55%) 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 $877, our data indicates the cheapest price to be $138. The most popular route (Philadelphia - Seattle/Tacoma Intl), is priced around $239.

  • 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 July is currently the most expensive (average of $224). 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

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 Philadelphia to Washington

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Miami flights
Newark to Miami flights
Newark to Fort Lauderdale flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
Newark to West Palm Beach flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Orlando flights
Newark to Las Vegas flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Orlando flights
Newark to Tampa flights
John F Kennedy Intl to Tampa flights
Reagan-National to Miami flights
Dulles Intl to Miami flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Tampa flights
John F Kennedy Intl to New Orleans flights
John F Kennedy Intl to San Francisco flights
Philadelphia to Orlando flights
Newark to New Orleans flights
Dulles Intl to Orlando flights
Dulles Intl to Dallas/Fort Worth flights
Newark to Sky Harbor Intl flights
Newark to Los Angeles flights
Dulles Intl to Fort Lauderdale flights
LaGuardia to West Palm Beach flights
Philadelphia to Miami flights
LaGuardia to New Orleans flights
Reagan-National to Orlando flights
LaGuardia to Hobby flights
Newark to Hobby flights
LaGuardia to Los Angeles flights
Newark to Fort Myers flights
Newark to Denver flights
Dulles Intl to Las Vegas flights
LaGuardia to Atlanta flights
Newark to San Francisco flights
Reagan-National to Los Angeles flights
Philadelphia to Fort Lauderdale flights
John F Kennedy Intl to Fort Myers flights
Dulles Intl to Los Angeles flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to Austin flights

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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$106Average$214FlexibilityNo cancel feeOn-time65%
FrontierCheapest$130Average$291FlexibilityNo cancel feeOn-time62%
DeltaCheapest$168Average$439FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$173Average$461FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$211Average$335FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$236Average$459FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$253Average$527FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$272Average$489FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$277Average$453FlexibilityNo cancel feeOn-time71%

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.