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$119+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$197
(Delta)

One-way from

$119
(United Airlines)

Popular in

December

Cheapest in

March

Average price

$462

Good round-trip deal

$317 or less

Good one-way deal

$188 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. 6% potential increase in price ($30 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 July 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 July 30, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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 10/15:30 amSEA - PIT
1 stop7h 55mDelta
Mon 10/65:30 pmPIT - SEA
1 stop7h 52mDelta
Deal found 7/29$197
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:30 amSEA - PIT
1 stop14h 10mSouthwest
Sun 8/247:35 pmPIT - SEA
1 stop7h 45mSouthwest
Deal found 7/28$200
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 9/3011:08 pmSEA - PIT
Nonstop4h 40mAlaska Airlines
Sat 10/47:59 pmPIT - SEA
Nonstop5h 23mAlaska Airlines
Deal found 7/29$217
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 8/305:35 amSEA - PIT
1 stop9h 33mAmerican Airlines
Sun 8/317:00 amPIT - SEA
1 stop10h 53mAmerican Airlines
Deal found 7/29$226
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 8/2511:10 pmSEA - PIT
Nonstop4h 38mHawaiian Airlines
Tue 9/27:42 pmPIT - SEA
Nonstop5h 12mHawaiian Airlines
Deal found 7/30$227
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/169:58 pmSEA - JFK
Nonstop5h 27mDelta
Tue 9/237:05 amJFK - SEA
Nonstop6h 10mDelta
Deal found 7/28$237
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/275:45 pmSEA - JFK
1 stop9h 24mHawaiian Airlines
Wed 10/14:40 pmJFK - SEA
Nonstop6h 14mHawaiian Airlines
Deal found 7/29$240
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 9/1610:41 pmSEA - JFK
Nonstop5h 25mAlaska Airlines
Wed 9/179:30 amJFK - SEA
1 stop10h 24mAlaska Airlines
Deal found 7/29$241
This lastminute.com deal was found by Cheapflights users on 7/30. 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.
Mon 9/2211:59 pmSEA - JFK
Nonstop5h 21mJetBlue
Wed 9/246:54 pmJFK - SEA
Nonstop6h 26mJetBlue
Deal found 7/30$242
This United Airlines deal was found by Cheapflights users on 7/30. 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 10/285:05 amSEA - PIT
2 stops8h 40mUnited Airlines
Mon 11/35:47 pmPIT - SEA
1 stop7h 58mUnited Airlines
Deal found 7/30$242
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Thu 9/411:15 pmSEA - EWR
1 stop16h 44mMultiple Airlines
Wed 9/107:30 amEWR - SEA
1 stop9h 13mMultiple Airlines
Deal found 7/29$243
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/65:05 pmSEA - EWR
1 stop9h 54mHawaiian Airlines
Sat 9/136:13 pmEWR - SEA
Nonstop6h 05mHawaiian Airlines
Deal found 7/28$244

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 July 30, 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

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Wed 10/1

5:30 am-4:25 pm

1 stop7h 55m

Pittsburgh

Mon 10/6

5:30 pm-10:22 pm

1 stop7h 52m

$197

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Thu 8/21

6:30 am-11:40 pm

1 stop14h 10m

Pittsburgh

Sun 8/24

7:35 pm-12:20 am

1 stop7h 45m

$200

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Tue 9/30

11:08 pm-6:48 am

Nonstop4h 40m

Pittsburgh

Sat 10/4

7:59 pm-10:22 pm

Nonstop5h 23m

$217

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Sat 8/30

5:35 am-6:08 pm

1 stop9h 33m

Pittsburgh

Sun 8/31

7:00 am-2:53 pm

1 stop10h 53m

$226

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Mon 8/25

11:10 pm-6:48 am

Nonstop4h 38m

Pittsburgh

Tue 9/2

7:42 pm-9:54 pm

Nonstop5h 12m

$227

SeattleNew York

SEA - JFK

SEAJFK

Seattle/Tacoma Intl

Tue 9/16

9:58 pm-6:25 am

Nonstop5h 27m

New York John F Kennedy Intl

Tue 9/23

7:05 am-10:15 am

Nonstop6h 10m

$237

SeattleNew York

SEA - JFK

SEAJFK

Seattle/Tacoma Intl

Sat 9/27

5:45 pm-6:09 am

1 stop9h 24m

New York John F Kennedy Intl

Wed 10/1

4:40 pm-7:54 pm

Nonstop6h 14m

$240

SeattleNew York

SEA - JFK

SEAJFK

Seattle/Tacoma Intl

Tue 9/16

10:41 pm-7:06 am

Nonstop5h 25m

New York John F Kennedy Intl

Wed 9/17

9:30 am-4:54 pm

1 stop10h 24m

$241

SeattleNew York

SEA - JFK

SEAJFK

Seattle/Tacoma Intl

Mon 9/22

11:59 pm-8:20 am

Nonstop5h 21m

New York John F Kennedy Intl

Wed 9/24

6:54 pm-10:20 pm

Nonstop6h 26m

$242

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Tue 10/28

5:05 am-4:45 pm

2 stops8h 40m

Pittsburgh

Mon 11/3

5:47 pm-10:45 pm

1 stop7h 58m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 30, 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 July 30, 2025.

The most flights from SEA to USPA are scheduled on a Monday (11 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (7 on average).

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 July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    $119 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from $120 and $128, respectively.

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

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

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

    Consider American Airlines (77%), Hawaiian Airlines (68%) or Air Tahiti Nui (68%) 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 $629 for a flight from Seattle to Pennsylvania. The cheapest flight overall is $138 while the most popular route, (Seattle/Tacoma Intl - Newark) is currently priced at $206.

  • 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 9 airlines flying from Seattle to Pennsylvania

Discover the top 9 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$113Average$249FlexibilityNo cancel feeOn-time65%
FrontierCheapest$132Average$282FlexibilityNo cancel feeOn-time62%
DeltaCheapest$161Average$451FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$183Average$421FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$547FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$222Average$452FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$236Average$576FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$250Average$525FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$311Average$480FlexibilityNo cancel feeOn-time83%

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