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$98+ Cheap flights from Pennsylvania 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Pennsylvania to Washington

Cheapest flights from Pennsylvania to Washington
Explore the most affordable flight options available from Pennsylvania to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 pm
DCA
-
SEA
1 stop21h 01m
Frontier
Mon 3/212:30 pm
SEA
-
DCA
1 stop30h 29m
Frontier
Deal found 1/27$189
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 3/42:00 pm
DCA
-
SEA
2 stops24h 01m
Frontier
Mon 3/912:24 pm
SEA
-
DCA
1 stop21h 38m
Frontier
Deal found 1/28$190
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Sat 2/142:00 pm
DCA
-
SEA
1 stop23h 55m
Frontier
Sat 2/211:16 pm
SEA
-
DCA
1 stop20h 59m
Frontier
Deal found 1/27$196
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:00 pm
DCA
-
SEA
1 stop19h 55m
Frontier
Sun 3/89:35 pm
SEA
-
DCA
2 stops36h 27m
Frontier
Deal found 1/27$205
This Super.com deal was found by Cheapflights users on 1/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
DCA
-
SEA
1 stop31h 01m
Frontier
Mon 2/2312:30 pm
SEA
-
DCA
1 stop21h 45m
Frontier
Deal found 1/27$206
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:00 pm
DCA
-
SEA
1 stop19h 55m
Frontier
Tue 3/1010:08 pm
SEA
-
DCA
2 stops20h 51m
Frontier
Deal found 1/27$208
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:27 pm
IAD
-
SEA
Nonstop6h 08m
Alaska Airlines
Wed 2/259:27 am
SEA
-
IAD
Nonstop4h 53m
Alaska Airlines
Deal found 1/28$209
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:00 am
DCA
-
SEA
Nonstop6h 10m
Alaska Airlines
Wed 2/258:00 am
SEA
-
DCA
Nonstop5h 06m
Alaska Airlines
Deal found 1/28$209
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/198:28 pm
EWR
-
SEA
Nonstop6h 23m
United Airlines
Sat 2/2812:42 pm
SEA
-
EWR
Nonstop5h 17m
United Airlines
Deal found 1/27$212
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Wed 2/258:00 am
DCA
-
SEA
2 stops29h 55m
Frontier
Fri 2/2712:00 pm
SEA
-
DCA
1 stop22h 00m
Frontier
Deal found 1/28$212
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/197:54 am
EWR
-
SEA
Nonstop6h 20m
United Airlines
Thu 2/2612:43 pm
SEA
-
EWR
Nonstop5h 17m
United Airlines
Deal found 1/27$213
This Mytrip deal was found by Cheapflights users on 1/28. 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 2/266:00 pm
DCA
-
SEA
1 stop19h 55m
Frontier
Mon 3/212:30 pm
SEA
-
DCA
1 stop21h 45m
Frontier
Deal found 1/28$215

Find flight deals from Pennsylvania to Washington

Keep the following information in mind while searching for Pennsylvania to Washington flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$189
(Kiwi.com)

One-way from

$98
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$356

Good round-trip deal

$294 or less

Good one-way deal

$208 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 Pennsylvania to Washington
Search Deals
One-way flight from Pennsylvania to Washington
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($63 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 January 2026
Search Deals
Price to beat on a round-trip flight from Pennsylvania to Washington.
Search Deals
Price to beat on a one-way flight from Pennsylvania to Washington.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 January 29, 2026.
Use the filters below to find and compare flights from Pennsylvania to Washington that are best for you.

Fly from

Pennsylvania

Fly to

Washington

Route

Depart

Return

Price

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 3/14

7:30 am-10:55 am

Nonstop6h 25m

Seattle/Tacoma Intl

Tue 3/17

10:45 pm-6:59 am

Nonstop5h 14m

$217

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 3/19

7:18 am-10:29 am

Nonstop6h 11m

Seattle/Tacoma Intl

Tue 3/24

6:10 am-2:27 pm

Nonstop5h 17m

$218

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 2/27

8:28 pm-11:51 pm

Nonstop6h 23m

Seattle/Tacoma Intl

Tue 3/3

6:45 am-7:05 pm

1 stop9h 20m

$228

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 3/7

4:45 pm-10:41 pm

1 stop8h 56m

Seattle/Tacoma Intl

Mon 3/9

11:59 pm-8:08 am

Nonstop5h 09m

$228

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 4/24

8:30 pm-11:46 pm

Nonstop6h 16m

Seattle/Tacoma Intl

Wed 4/29

7:05 pm-5:51 am

1 stop7h 46m

$229

New YorkSeattle

JFK - SEA

JFKSEA

New York John F Kennedy Intl

Wed 3/4

6:55 pm-10:22 pm

Nonstop6h 27m

Seattle/Tacoma Intl

Tue 3/10

10:58 pm-7:15 am

Nonstop5h 17m

$237

New YorkSeattle

JFK - SEA

JFKSEA

New York John F Kennedy Intl

Sat 4/25

7:00 pm-10:31 pm

Nonstop6h 31m

Seattle/Tacoma Intl

Tue 4/28

12:00 pm-8:30 pm

Nonstop5h 30m

$237

New YorkSeattle

JFK - SEA

JFKSEA

New York John F Kennedy Intl

Tue 3/10

4:25 pm-11:56 am

1 stop22h 31m

Seattle/Tacoma Intl

Wed 3/11

2:44 pm-10:59 pm

Nonstop5h 15m

$237

NewarkPortland

EWR - PDX

EWRPDX

Newark

Sat 2/21

6:00 am-12:44 pm

1 stop9h 44m

Portland

Sat 2/28

5:45 am-3:54 pm

1 stop7h 09m

$237

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 3/24

7:49 am-11:10 am

Nonstop6h 21m

Seattle/Tacoma Intl

Mon 3/30

11:59 pm-12:20 pm

1 stop9h 21m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Washington

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

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

Currently, February is the cheapest month in which you can book a flight from Pennsylvania to State of Washington (average of $167). Flying from Pennsylvania to State of Washington in June is currently the most expensive (average of $246). 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 PA to WA?

Find hourly flight availability from Pennsylvania 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 January 29, 2026.

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

Weekly flight availability from Pennsylvania to State of Washington

Explore weekly flight availability from Pennsylvania 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 January 29, 2026.

The most flights from USPA to USWA are scheduled on a Wednesday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 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 January 29, 2026.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Pennsylvania to Washington. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,807 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

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
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

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
8,128 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

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
2,830 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

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.
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

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
11,205 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

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 Pennsylvania to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Within the past month, 37 users have taken a look at flights from Pennsylvania to Washington.

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

    Airlines like Alaska Airlines, United Airlines, and Delta fly from Pennsylvania to State of Washington in about 6h 23m. The time it takes to get you to your destination is usually consistent. The distance between Pennsylvania and State of Washington is about 2393 mi. Generally, flights for this route are nonstop.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $85. Users have also found prices from $89 and $91 on American Airlines and Spirit Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania 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 Pennsylvania to State of Washington?

    Currently, February is the cheapest month in which you can book a flight from Pennsylvania to State of Washington (average of $167). Flying from Pennsylvania to State of Washington in June is currently the most expensive (average of $246). 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 Pennsylvania 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 Pennsylvania to Washington

Discover the top 9 airlines that operate flights from Pennsylvania 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$225FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$106Average$223FlexibilityNo cancel feeOn-time65%
DeltaCheapest$149Average$447FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$157Average$443FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$173Average$433FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$178Average$499FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$180Average$522FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$211Average$335FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$221Average$523FlexibilityNo cancel feeOn-time69%

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