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$102+ Cheap flights from Pennsylvania to Seattle (SEA)

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Pennsylvania to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Pennsylvania (USPA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$232
(American Airlines)

One-way from

$102
(Mytrip)

Good round-trip deal

$366 or less

Good one-way deal

$239 or less
From Pennsylvania to Seattle/Tacoma Intl
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One-way flight from Pennsylvania to Seattle/Tacoma Intl
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Price to beat on a round-trip flight from Pennsylvania to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Pennsylvania to Seattle/Tacoma Intl.
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Find flight deals from Pennsylvania to Seattle

Cheapest flights from Pennsylvania to Seattle
Explore the most affordable flight options available from Pennsylvania to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/121:17 pmMDT - SEA
2 stops11h 01mAmerican Airlines
Wed 2/1910:24 amSEA - MDT
1 stop9h 56mAmerican Airlines
Deal found 1/20$232
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/42:03 pmPIT - SEA
1 stop10h 15mAmerican Airlines
Wed 2/125:22 amSEA - PIT
1 stop8h 25mAmerican Airlines
Deal found 1/20$234
This Delta deal was found by Cheapflights users on 1/21. 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.
Tue 4/295:40 pmPIT - SEA
1 stop9h 19mDelta
Fri 5/212:40 amSEA - PIT
1 stop8h 27mDelta
Deal found 1/21$247
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Tue 2/1110:03 amEWR - SEA
3 stops33h 40mSpirit Airlines
Tue 2/185:38 pmSEA - EWR
2 stops12h 30mSpirit Airlines
Deal found 1/21$249
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/74:39 pmEWR - SEA
1 stop10h 03mAlaska Airlines
Wed 2/196:15 amSEA - EWR
Nonstop5h 18mAlaska Airlines
Deal found 1/20$252
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/184:16 pmPIT - SEA
2 stops9h 45mUnited Airlines
Mon 3/2411:59 pmSEA - PIT
1 stop7h 15mUnited Airlines
Deal found 1/20$252
This American Airlines deal was found by Cheapflights users on 1/21. 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 3/185:00 pmSCE - SEA
1 stop8h 05mAmerican Airlines
Tue 3/2511:59 pmSEA - SCE
2 stops13h 36mAmerican Airlines
Deal found 1/21$254
This Expedia deal was found by Cheapflights users on 1/20. 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.
Thu 2/275:37 pmEWR - SEA
Nonstop6h 18mMultiple Airlines
Sun 3/25:38 pmSEA - EWR
2 stops16h 26mMultiple Airlines
Deal found 1/20$255
This Delta deal was found by Cheapflights users on 1/20. 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.
Mon 2/246:30 pmEWR - SEA
1 stop9h 20mDelta
Thu 2/276:00 amSEA - EWR
1 stop8h 05mDelta
Deal found 1/20$257
This Delta deal was found by Cheapflights users on 1/19. 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 2/197:00 pmJFK - SEA
Nonstop6h 25mDelta
Tue 3/41:40 pmSEA - JFK
Nonstop5h 22mDelta
Deal found 1/19$257
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:39 pmPIT - SEA
Nonstop5h 14mAlaska Airlines
Tue 5/611:01 amSEA - PIT
Nonstop4h 42mAlaska Airlines
Deal found 1/20$257
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/265:15 pmLGA - SEA
1 stop8h 27mUnited Airlines
Sat 3/110:52 amSEA - LGA
1 stop9h 20mUnited Airlines
Deal found 1/21$257

Find flights from Pennsylvania to Seattle within your budget

Customize your flight search to find flights from Pennsylvania to Seattle 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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HarrisburgSeattle

MDT - SEA

MDTSEA

Harrisburg

Wed 2/12

1:17 pm-9:18 pm

2 stops11h 01m

Seattle/Tacoma Intl

Wed 2/19

10:24 am-11:20 pm

1 stop9h 56m

$232

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 2/4

12:38 pm-8:04 pm

1 stop10h 26m

Seattle/Tacoma Intl

Tue 2/11

5:22 am-4:47 pm

1 stop8h 25m

$234

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Wed 3/19

7:02 pm-12:55 am

1 stop8h 53m

Seattle/Tacoma Intl

Tue 3/25

7:00 am-6:00 pm

1 stop8h 00m

$242

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 4/29

5:40 pm-11:59 pm

1 stop9h 19m

Seattle/Tacoma Intl

Fri 5/2

12:40 am-12:07 pm

1 stop8h 27m

$247

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 2/11

10:03 am-4:43 pm

3 stops33h 40m

Seattle/Tacoma Intl

Tue 2/18

5:38 pm-9:08 am

2 stops12h 30m

$249

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Fri 2/7

4:39 pm-11:42 pm

1 stop10h 03m

Seattle/Tacoma Intl

Wed 2/19

6:15 am-2:33 pm

Nonstop5h 18m

$252

State CollegeSeattle

SCE - SEA

SCESEA

State College University Park

Tue 3/18

5:00 pm-10:05 pm

1 stop8h 05m

Seattle/Tacoma Intl

Tue 3/25

11:59 pm-4:35 pm

2 stops13h 36m

$254

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Thu 2/27

5:37 pm-8:55 pm

Nonstop6h 18m

Seattle/Tacoma Intl

Sun 3/2

5:38 pm-1:04 pm

2 stops16h 26m

$255

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Mon 2/24

6:30 pm-12:50 am

1 stop9h 20m

Seattle/Tacoma Intl

Thu 2/27

6:00 am-5:05 pm

1 stop8h 05m

$257

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

Tue 4/29

7:39 pm-9:53 pm

Nonstop5h 14m

Seattle/Tacoma Intl

Tue 5/6

11:01 am-6:43 pm

Nonstop4h 42m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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

Have a flexible travel schedule? Discover the best time to fly to Seattle 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.

Travel insights for flights from Pennsylvania to Seattle

Get recent, data-driven insights about flights from Pennsylvania to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Pennsylvania to Seattle?

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Seattle (average of $238). Flying from Pennsylvania to Seattle 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 PA to SEA?

Find hourly flight availability from Pennsylvania to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

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

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle 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 Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated January 21, 2025.
To help decide which airline to fly from Pennsylvania to Seattle, see what other customers have to say about Sun Country Air, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Seattle. 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 into for flights to Seattle from Pennsylvania?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Pennsylvania to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How popular is this Pennsylvania to Seattle flight route?

    Within the past month, 33 users have taken a look at flights from Pennsylvania to Seattle/Tacoma Intl.

  • What are the cheapest airlines to fly from Pennsylvania to Seattle one-way?

    $102 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $111 and $129, respectively.

  • What are the most popular routes from Pennsylvania to Seattle?

    When deciding which route to take from Pennsylvania to Seattle consider New York John F Kennedy Intl - Seattle/Tacoma Intl, Newark - Seattle/Tacoma Intl or Washington, D.C. Reagan-National - Seattle/Tacoma Intl as they are the most popular.

  • What are the most reliable airlines from Pennsylvania to Seattle?

    The top 3 most reliable airlines when flying from Pennsylvania to Seattle are Hawaiian Airlines (73%), American Airlines (72%) and Qatar Airways (71%).

  • What are the cheapest flights from Pennsylvania to Seattle?

    On average you can expect to pay $937 for a flight from Pennsylvania to Seattle. The cheapest flight overall is $148 while the most popular route, (New York John F Kennedy Intl - Seattle/Tacoma Intl) is currently priced at $198.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania to Seattle 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 Seattle?

    Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Seattle (average of $238). Flying from Pennsylvania to Seattle 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.

See more FAQs

Traveling to a place near Pennsylvania?

Book flights to Pennsylvania if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pennsylvania to Seattle

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 Seattle

Discover the top 9 airlines that operate flights from Pennsylvania to Seattle. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$234FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$115Average$261FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$125Average$234FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$196Average$551FlexibilityNo cancel feeOn-time71%
DeltaCheapest$199Average$446FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$199Average$313FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$236Average$617FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$246Average$456FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$253Average$569FlexibilityNo cancel feeOn-time75%
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