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$114+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHL
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$233
(Cheapflightsfares)

One-way from

$114
(Cheapflightsfares)

Popular in

December

Cheapest in

April

Average price

$404

Good round-trip deal

$295 or less

Good one-way deal

$193 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Philadelphia flights.
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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. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/22:30 pmSEA - EWR
1 stop12h 20mSpirit Airlines
Sun 5/46:55 amEWR - SEA
1 stop14h 28mSpirit Airlines
Deal found 3/25$233
This United Airlines deal was found by Cheapflights users on 3/24. 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 4/18:15 amSEA - EWR
1 stop7h 56mUnited Airlines
Fri 4/45:52 amEWR - SEA
1 stop8h 56mUnited Airlines
Deal found 3/24$234
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
Sat 5/33:36 pmSEA - EWR
1 stop11h 23mAlaska Airlines
Wed 5/79:00 amEWR - SEA
1 stop10h 40mAlaska Airlines
Deal found 3/25$238
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/15:45 pmSEA - EWR
1 stop8h 47mAmerican Airlines
Mon 4/75:59 pmEWR - SEA
1 stop9h 52mAmerican Airlines
Deal found 3/24$240
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Mon 4/1410:55 amSEA - PIT
Nonstop4h 41mHawaiian Airlines
Tue 4/227:39 pmPIT - SEA
Nonstop5h 14mHawaiian Airlines
Deal found 3/24$241
This United Airlines deal was found by Cheapflights users on 3/23. 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 5/145:15 amSEA - PIT
1 stop7h 10mUnited Airlines
Sat 5/175:40 pmPIT - SEA
1 stop10h 19mUnited Airlines
Deal found 3/23$242
This lastminute.com deal was found by Cheapflights users on 3/24. 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.
Sun 4/139:42 pmSEA - EWR
Nonstop5h 17mMultiple Airlines
Tue 4/227:29 pmEWR - SEA
1 stop15h 36mMultiple Airlines
Deal found 3/24$244
This Delta deal was found by Cheapflights users on 3/24. 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 7/99:45 pmSEA - PIT
1 stop8h 48mDelta
Thu 7/244:50 pmPIT - SEA
1 stop10h 05mDelta
Deal found 3/24$247
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. 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 4/149:42 pmSEA - EWR
Nonstop5h 17mHawaiian Airlines
Tue 4/227:30 amEWR - SEA
1 stop12h 19mHawaiian Airlines
Deal found 3/24$248
This Mytrip deal was found by Cheapflights users on 3/24. 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 5/612:30 pmSEA - LGA
2 stops23h 30mSpirit Airlines
Thu 5/81:35 pmLGA - SEA
2 stops37h 35mSpirit Airlines
Deal found 3/24$255
This Delta deal was found by Cheapflights users on 3/24. 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.
Fri 5/212:45 amSEA - EWR
1 stop8h 06mDelta
Mon 5/126:59 pmEWR - SEA
1 stop8h 00mDelta
Deal found 3/24$257
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 5/69:33 pmSEA - JFK
Nonstop5h 27mAlaska Airlines
Sat 5/107:20 amJFK - SEA
Nonstop6h 07mAlaska Airlines
Deal found 3/24$257

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 March 26, 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

Fri 5/2

2:30 pm-5:50 am

1 stop12h 20m

Newark

Sun 5/4

6:55 am-6:23 pm

1 stop14h 28m

$233

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 4/1

8:15 am-7:11 pm

1 stop7h 56m

Newark

Fri 4/4

5:52 am-11:48 am

1 stop8h 56m

$234

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Sat 5/3

3:36 pm-5:59 am

1 stop11h 23m

Newark

Wed 5/14

5:30 pm-11:31 pm

1 stop9h 01m

$238

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 4/1

5:45 pm-5:32 am

1 stop8h 47m

Newark

Mon 4/7

5:59 pm-12:51 am

1 stop9h 52m

$240

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Mon 4/14

10:55 am-6:36 pm

Nonstop4h 41m

Pittsburgh

Tue 4/22

7:39 pm-9:53 pm

Nonstop5h 14m

$241

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Wed 5/14

5:15 am-3:25 pm

1 stop7h 10m

Pittsburgh

Sat 5/17

5:40 pm-12:59 am

1 stop10h 19m

$242

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Sun 4/13

9:42 pm-5:59 am

Nonstop5h 17m

Newark

Tue 4/22

7:29 pm-8:05 am

1 stop15h 36m

$244

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Wed 7/9

9:45 pm-9:33 am

1 stop8h 48m

Pittsburgh

Thu 7/24

4:50 pm-11:55 pm

1 stop10h 05m

$247

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Mon 4/14

9:42 pm-5:59 am

Nonstop5h 17m

Newark

Tue 4/22

7:30 am-4:49 pm

1 stop12h 19m

$248

SeattleNew York

SEA - LGA

SEALGA

Seattle/Tacoma Intl

Tue 5/6

12:30 pm-3:00 pm

2 stops23h 30m

New York LaGuardia

Thu 5/8

1:35 pm-12:10 am

2 stops37h 35m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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 March 26, 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 March 26, 2025.

The most flights from SEA to USPA are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Pennsylvania by month

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

In terms of precipitation, rainfall in Pennsylvania ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Pennsylvania when rainfall is around 2.7 in.

Temperature in Pennsylvania by month

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

If weather is an important factor for your trip to Pennsylvania, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 March 26, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Seattle to Pennsylvania. 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
4,274 reviews

Crew

8.6

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,330 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Entertainment

7.6

Food

7.1

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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?

    $114 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 $119 and $124, 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 Alaska Airlines (97%), Hawaiian Airlines (97%) or Air Tahiti Nui (97%) 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 $745 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 $218.

  • 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$85Average$213FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$118Average$489FlexibilityNo cancel feeOn-time85%
FrontierCheapest$128Average$248FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$424FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$212Average$580FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$220Average$333FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$236Average$625FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$241Average$429FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$256Average$604FlexibilityNo cancel feeOn-time75%
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