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$67+ Cheap flights from Seattle (SEA) to Pennsylvania

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHL
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Seattle to Pennsylvania

Keep the following information in mind while searching for Seattle to Pennsylvania flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$185
(lastminute.com)

One-way from

$67
(Southwest)

Popular in

December

Cheapest in

March

Average price

$416

Good round-trip deal

$312 or less

Good one-way deal

$198 or less
From Seattle/Tacoma Intl to Pennsylvania
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One-way flight from Seattle/Tacoma Intl to Pennsylvania
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Highest demand for flights based on searches. 5% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Pennsylvania.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Pennsylvania.
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Find flight deals from Seattle to Pennsylvania

Cheapest flights from Seattle to Pennsylvania
Explore the most affordable flight options available from Seattle to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This lastminute.com deal was found by Cheapflights users on 9/9. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1111:40 pmSEA - JFK
Nonstop5h 20mJetBlue
vie. 10/177:00 pmJFK - SEA
Nonstop6h 36mJetBlue
Deal found 9/9$185
This SmartFares deal was found by Cheapflights users on 9/10. 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.
lun. 10/2010:55 pmSEA - JFK
Nonstop5h 25mAlaska Airlines
mié. 10/296:49 pmJFK - SEA
Nonstop6h 22mAlaska Airlines
Deal found 9/10$186
This CheapOair deal was found by Cheapflights users on 9/10. 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.
mié. 9/247:00 amSEA - LGA
1 stop12h 11mFrontier
mié. 10/110:56 pmLGA - SEA
1 stop28h 34mFrontier
Deal found 9/10$190
This flygcity.se deal was found by Cheapflights users on 9/10. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1111:56 pmSEA - JFK
Nonstop5h 19mJetBlue
sáb. 10/187:00 pmJFK - SEA
Nonstop6h 36mJetBlue
Deal found 9/10$191
This Netflights deal was found by Cheapflights users on 9/9. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/111:59 pmSEA - JFK
Nonstop5h 21mAlaska Airlines
vie. 11/77:00 amJFK - SEA
Nonstop6h 25mAlaska Airlines
Deal found 9/9$194
This Southwest deal was found by Cheapflights users on 9/10. 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.
mié. 10/15:35 amSEA - LGA
1 stop7h 35mSouthwest
mar. 10/711:40 amLGA - SEA
2 stops11h 10mSouthwest
Deal found 9/10$194
This Southwest deal was found by Cheapflights users on 9/9. 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.
mar. 9/2311:10 pmSEA - LGA
1 stop6h 50mSouthwest
mar. 9/306:00 amLGA - SEA
1 stop8h 10mSouthwest
Deal found 9/9$195
This KAYAK deal was found by Cheapflights users on 9/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/89:34 pmSEA - EWR
Nonstop5h 25mAlaska Airlines
mar. 11/117:29 pmEWR - SEA
Nonstop6h 21mAlaska Airlines
Deal found 9/9$196
This American Airlines deal was found by Cheapflights users on 9/11. 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.
vie. 10/3111:44 amSEA - LGA
1 stop8h 51mAmerican Airlines
mié. 11/56:00 amLGA - SEA
1 stop8h 40mAmerican Airlines
Deal found 9/11$196
This United Airlines deal was found by Cheapflights users on 9/10. 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.
mié. 10/16:00 amSEA - EWR
Nonstop5h 23mUnited Airlines
mar. 10/77:45 amEWR - SEA
Nonstop6h 02mUnited Airlines
Deal found 9/10$197
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/272:40 pmSEA - JFK
Nonstop5h 19mHawaiian Airlines
vie. 11/77:00 amJFK - SEA
Nonstop6h 25mHawaiian Airlines
Deal found 9/10$197
This Delta deal was found by Cheapflights users on 9/10. 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.
jue. 10/25:30 amSEA - PIT
1 stop7h 55mDelta
sáb. 10/115:30 pmPIT - SEA
1 stop7h 52mDelta
Deal found 9/10$197

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Pennsylvania 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Seattle to Pennsylvania that are best for you.

Fly from

Seattle

Fly to

Pennsylvania

Route

Depart

Return

Price

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 11/3

6:20 am-2:36 pm

Nonstop5h 16m

Newark

dom. 11/9

7:55 am-11:11 am

Nonstop6h 16m

$197

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

mar. 10/28

9:34 pm-5:59 am

Nonstop5h 25m

Newark

jue. 11/6

7:29 pm-10:50 pm

Nonstop6h 21m

$197

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

vie. 11/7

11:55 pm-10:22 am

1 stop7h 27m

Pittsburgh

lun. 11/10

5:28 pm-12:11 am

1 stop9h 43m

$197

SeattleNew York

SEA - LGA

SEALGA

Seattle/Tacoma Intl

mié. 2/18

6:45 am-5:30 pm

1 stop7h 45m

New York LaGuardia

sáb. 2/21

6:00 am-1:50 pm

1 stop10h 50m

$197

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

dom. 10/5

6:00 am-2:23 pm

Nonstop5h 23m

Newark

jue. 10/9

7:08 pm-10:17 pm

Nonstop6h 09m

$197

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

vie. 10/3

11:40 pm-10:20 am

1 stop7h 40m

Pittsburgh

sáb. 10/11

5:30 pm-10:22 pm

1 stop7h 52m

$197

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

mar. 9/30

5:30 am-4:25 pm

1 stop7h 55m

Pittsburgh

sáb. 10/11

5:30 pm-10:22 pm

1 stop7h 52m

$204

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

mar. 11/11

5:25 am-4:33 pm

1 stop8h 08m

Pittsburgh

dom. 11/23

7:20 pm-11:59 pm

1 stop7h 39m

$206

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

sáb. 10/11

9:30 pm-5:59 am

Nonstop5h 29m

Newark

sáb. 10/18

7:29 pm-10:39 pm

Nonstop6h 10m

$207

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

sáb. 9/27

9:55 am-6:29 pm

Nonstop5h 34m

Newark

sáb. 10/4

6:00 pm-9:08 pm

Nonstop6h 08m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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

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

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Pennsylvania (average of $236). Flying from Seattle to Pennsylvania in March is currently the most expensive (average of $295). 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 SEA to PA?

Find hourly flight availability from Seattle to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

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

Weekly flight availability from Seattle to Pennsylvania

Explore weekly flight availability from Seattle to Pennsylvania. 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 septiembre 11, 2025.

The most flights from SEA to USPA are scheduled on a Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Seattle to Pennsylvania?

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated septiembre 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

    If you book a flight to Pennsylvania from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How popular is this Seattle to Pennsylvania flight route?

    The Seattle/Tacoma Intl to Pennsylvania flight path was viewed by 10 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 Seattle to Pennsylvania?

    Airlines like United Airlines, Alaska Airlines, and Delta fly from Seattle to Pennsylvania in about 5h 16m. The time it takes to get you to your destination can typically vary by up to 2h 11m. The distance from Seattle to Pennsylvania is about 2393 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $67 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $90 and $99, respectively.

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

    The most popular route from Seattle to Pennsylvania is Seattle/Tacoma Intl - New York John F Kennedy Intl. You may also consider Seattle/Tacoma Intl - Washington, D.C. Dulles Intl or Seattle/Tacoma Intl - Newark.

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

    Consider Hawaiian Airlines (77%), Finnair (75%) or American Airlines (71%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Pennsylvania.

  • What are the cheapest flights from Seattle to Pennsylvania?

    On average you can expect to pay $520 for a flight from Seattle to Pennsylvania. The cheapest flight overall is $138 while the most popular route, (Seattle/Tacoma Intl - New York John F Kennedy Intl) is currently priced at $177.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Seattle to Pennsylvania (average of $236). Flying from Seattle to Pennsylvania in March is currently the most expensive (average of $295). 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.

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Alternative routes for Seattle to Pennsylvania

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Seattle to Pennsylvania

Discover the top 8 airlines that operate flights from Seattle to Pennsylvania. 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$114Average$258FlexibilityNo cancel feeOn-time65%
FrontierCheapest$131Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$444FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$183Average$404FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$194Average$504FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$222Average$448FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$223Average$567FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$248Average$468FlexibilityNo cancel feeOn-time75%

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