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$96+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SEA
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Pennsylvania to Seattle

Keep the following information in mind while searching for Pennsylvania to Seattle flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Delta)

One-way from

$96
(Mytrip)

Popular in

July

Cheapest in

April

Average price

$416

Good round-trip deal

$406 or less

Good one-way deal

$198 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 Pennsylvania to Seattle/Tacoma Intl
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One-way flight from Pennsylvania to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 15% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 febrero 20, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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.
mié. 3/266:25 amPIT - SEA
1 stop7h 17mDelta
lun. 3/3112:49 amSEA - PIT
1 stop6h 26mDelta
Deal found 2/19$237
This United Airlines deal was found by Cheapflights users on 2/18. 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.
mar. 3/44:17 pmPIT - SEA
1 stop7h 44mUnited Airlines
mar. 3/117:00 amSEA - PIT
1 stop8h 00mUnited Airlines
Deal found 2/18$239
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/17:17 pmPIT - SEA
3 stops26h 52mSpirit Airlines
mar. 4/89:48 amSEA - PIT
3 stops44h 01mSpirit Airlines
Deal found 2/19$241
This CheapOair deal was found by Cheapflights users on 2/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/1010:00 amEWR - SEA
1 stop28h 46mSpirit Airlines
jue. 3/1312:41 pmSEA - EWR
1 stop23h 12mSpirit Airlines
Deal found 2/20$249
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/227:15 pmPIT - SEA
1 stop8h 31mAmerican Airlines
mar. 5/2711:58 pmSEA - PIT
1 stop7h 53mAmerican Airlines
Deal found 2/19$252
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
lun. 3/246:27 pmEWR - SEA
Nonstop6h 18mAlaska Airlines
mié. 4/26:20 amSEA - EWR
Nonstop5h 22mAlaska Airlines
Deal found 2/20$253
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/222:29 pmLGA - SEA
1 stop9h 35mAmerican Airlines
mar. 4/2911:59 pmSEA - LGA
1 stop8h 29mAmerican Airlines
Deal found 2/19$256
This Delta deal was found by Cheapflights users on 2/19. 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.
mié. 2/2612:43 pmEWR - SEA
1 stop11h 04mDelta
lun. 3/311:05 pmSEA - EWR
1 stop6h 47mDelta
Deal found 2/19$257
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 3/257:30 amJFK - SEA
Nonstop6h 15mDelta
mar. 4/87:10 amSEA - JFK
Nonstop5h 35mDelta
Deal found 2/20$257
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/123:25 pmLGA - SEA
2 stops23h 21mSpirit Airlines
jue. 3/137:57 pmSEA - LGA
2 stops23h 36mSpirit Airlines
Deal found 2/20$258
This CheapOair deal was found by Cheapflights users on 2/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/47:59 amJFK - SEA
1 stop9h 45mFrontier
dom. 3/911:38 amSEA - JFK
1 stop15h 52mFrontier
Deal found 2/20$260
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 3/254:00 pmLGA - SEA
1 stop9h 22mDelta
mié. 4/26:00 amSEA - LGA
1 stop10h 36mDelta
Deal found 2/20$260

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 febrero 20, 2025.

Fly from

Pennsylvania

Fly to

Seattle

Route

Depart

Return

Price

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

mié. 3/26

6:25 am-10:42 am

1 stop7h 17m

Seattle/Tacoma Intl

lun. 3/31

12:49 am-10:15 am

1 stop6h 26m

$237

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

mar. 3/4

4:17 pm-9:01 pm

1 stop7h 44m

Seattle/Tacoma Intl

mar. 3/11

7:00 am-6:00 pm

1 stop8h 00m

$239

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

mar. 4/1

7:17 pm-7:09 pm

3 stops26h 52m

Seattle/Tacoma Intl

mar. 4/8

9:48 am-8:49 am

3 stops44h 01m

$241

PittsburghSeattle

PIT - SEA

PITSEA

Pittsburgh

sáb. 3/22

3:25 pm-10:05 pm

1 stop9h 40m

Seattle/Tacoma Intl

mar. 3/25

11:59 pm-11:03 am

1 stop8h 04m

$247

NewarkSeattle

EWR - SEA

EWRSEA

Newark

lun. 3/10

10:00 am-11:46 am

1 stop28h 46m

Seattle/Tacoma Intl

jue. 3/13

12:41 pm-2:53 pm

1 stop23h 12m

$249

NewarkSeattle

EWR - SEA

EWRSEA

Newark

lun. 3/24

6:27 pm-9:45 pm

Nonstop6h 18m

Seattle/Tacoma Intl

mar. 3/25

10:36 am-6:59 pm

Nonstop5h 23m

$253

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

mar. 4/22

2:29 pm-9:04 pm

1 stop9h 35m

Seattle/Tacoma Intl

mar. 4/29

11:59 pm-11:28 am

1 stop8h 29m

$256

NewarkSeattle

EWR - SEA

EWRSEA

Newark

lun. 3/24

6:45 pm-12:09 am

1 stop8h 24m

Seattle/Tacoma Intl

mar. 3/25

6:00 am-3:45 pm

1 stop6h 45m

$257

New YorkSeattle

JFK - SEA

JFKSEA

New York John F Kennedy Intl

mar. 3/25

11:30 am-2:47 pm

Nonstop6h 17m

Seattle/Tacoma Intl

mié. 4/2

9:37 pm-6:00 am

Nonstop5h 23m

$257

New YorkSeattle

LGA - SEA

LGASEA

New York LaGuardia

mié. 3/12

3:25 pm-11:46 am

2 stops23h 21m

Seattle/Tacoma Intl

jue. 3/13

7:57 pm-10:33 pm

2 stops23h 36m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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 febrero 20, 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.

Weekly flight availability from Pennsylvania to Seattle

Explore weekly flight availability from Pennsylvania to Seattle. 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 febrero 20, 2025.

The most flights from USPA to SEA are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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 febrero 20, 2025.
To help decide which airline to fly from Pennsylvania to Seattle, see what other customers have to say about Southwest, Alaska Airlines and Delta. 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
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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, 30 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?

    $96 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 Alaska Airlines and Delta, with prices starting from $109 and $124, respectively.

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

    When deciding which route to take from Pennsylvania to Seattle consider Newark - Seattle/Tacoma Intl, New York John F Kennedy Intl - 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 (79%), Alaska Airlines (73%) and Air Tahiti Nui (64%).

  • What are the cheapest flights from Pennsylvania to Seattle?

    On average you can expect to pay $923 for a flight from Pennsylvania to Seattle. The cheapest flight overall is $148 while the most popular route, (Newark - Seattle/Tacoma Intl) is currently priced at $148.

  • 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
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$235FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$115Average$261FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$125Average$235FlexibilityNo cancel feeOn-time65%
DeltaCheapest$196Average$469FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$199Average$316FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$200Average$548FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$596FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$246Average$457FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$256Average$571FlexibilityNo cancel feeOn-time75%
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