Pennsylvania

$90+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHL
Feb 27 — Mar 61
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Cheap 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 January 28, 2026.

This CheapOair deal was found by Cheapflights users on 1/27. 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.
Wed 4/110:53 am
SEA
-
PIT
Nonstop4h 35m
Alaska Airlines
Sat 4/47:24 pm
PIT
-
SEA
Nonstop5h 22m
Alaska Airlines
Deal found 1/27$177
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 2/231:44 pm
SEA
-
PIT
1 stop7h 43m
American Airlines
Thu 2/267:09 pm
PIT
-
SEA
1 stop8h 15m
American Airlines
Deal found 1/27$179
This Delta deal was found by Cheapflights users on 1/27. 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 3/116:00 am
SEA
-
PIT
1 stop8h 19m
Delta
Sat 3/145:23 pm
PIT
-
SEA
1 stop7h 38m
Delta
Deal found 1/27$197
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/261:16 pm
SEA
-
DCA
1 stop20h 44m
Frontier
Wed 3/42:00 pm
DCA
-
SEA
2 stops21h 13m
Frontier
Deal found 1/26$199
This Expedia deal was found by Cheapflights users on 1/26. 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 4/236:57 pm
SEA
-
DCA
1 stop15h 03m
Frontier
Thu 4/301:59 pm
DCA
-
SEA
1 stop28h 06m
Frontier
Deal found 1/26$201
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/191:16 pm
SEA
-
DCA
1 stop20h 59m
Frontier
Wed 2/252:00 pm
DCA
-
SEA
1 stop25h 01m
Frontier
Deal found 1/27$205
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/281:16 pm
SEA
-
EWR
2 stops32h 23m
Multiple Airlines
Sat 3/79:10 am
EWR
-
SEA
1 stop33h 59m
Multiple Airlines
Deal found 1/26$211
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/176:30 pm
SEA
-
DCA
2 stops39h 45m
Frontier
Wed 2/252:00 pm
DCA
-
SEA
1 stop25h 01m
Frontier
Deal found 1/27$212
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/107:45 am
SEA
-
EWR
1 stop8h 14m
Hawaiian Airlines
Wed 3/119:00 am
EWR
-
SEA
Nonstop6h 29m
Hawaiian Airlines
Deal found 1/27$213
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 4/149:36 pm
SEA
-
EWR
Nonstop5h 22m
Alaska Airlines
Wed 4/159:00 am
EWR
-
SEA
Nonstop6h 14m
Alaska Airlines
Deal found 1/27$214
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 2/261:16 pm
SEA
-
DCA
1 stop24h 43m
Frontier
Mon 3/22:00 pm
DCA
-
SEA
2 stops31h 18m
Frontier
Deal found 1/26$217
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Sat 2/2811:35 pm
SEA
-
EWR
Nonstop5h 09m
United Airlines
Sat 3/77:49 am
EWR
-
SEA
Nonstop6h 21m
United Airlines
Deal found 1/26$217

Find flight deals from Seattle to Pennsylvania

Keep the following information in mind while searching for Seattle to Pennsylvania flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(CheapOair)

One-way from

$90
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$368

Good round-trip deal

$197 or less

Good one-way deal

$118 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Philadelphia flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Philadelphia flights.
From Seattle/Tacoma Intl to Pennsylvania
One-way flight from Seattle/Tacoma Intl to Pennsylvania
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Pennsylvania.
Price to beat on a one-way flight from Seattle/Tacoma Intl to Pennsylvania.

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 January 28, 2026.
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 4/1

10:53 am-6:28 pm

Nonstop4h 35m

Pittsburgh

Sat 4/4

7:24 pm-9:46 pm

Nonstop5h 22m

$177

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Thu 3/5

12:59 am-2:22 pm

1 stop10h 23m

Pittsburgh

Mon 3/9

7:19 pm-12:55 am

1 stop8h 36m

$179

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Wed 3/11

6:00 am-5:19 pm

1 stop8h 19m

Pittsburgh

Sat 3/14

5:23 pm-10:01 pm

1 stop7h 38m

$197

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Tue 6/9

5:45 am-4:47 pm

1 stop8h 02m

Pittsburgh

Fri 6/12

5:35 pm-12:01 am

1 stop9h 26m

$197

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Tue 4/14

11:05 pm-7:26 am

Nonstop5h 21m

Newark

Tue 4/21

7:50 am-11:02 am

Nonstop6h 12m

$219

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Wed 4/8

12:08 pm-8:29 pm

Nonstop5h 21m

Newark

Tue 4/14

7:50 am-11:02 am

Nonstop6h 12m

$219

SeattlePittsburgh

SEA - PIT

SEAPIT

Seattle/Tacoma Intl

Wed 2/18

6:05 am-8:00 pm

2 stops10h 55m

Pittsburgh

Wed 2/25

5:50 am-1:15 pm

1 stop10h 25m

$224

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Thu 3/5

5:00 am-6:16 pm

1 stop10h 16m

Newark

Sat 3/7

7:49 am-11:10 am

Nonstop6h 21m

$228

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Sun 4/19

6:13 am-2:30 pm

Nonstop5h 17m

Newark

Tue 4/28

7:59 am-2:42 pm

1 stop9h 43m

$229

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

Fri 3/6

7:10 pm-5:37 am

1 stop7h 27m

Newark

Mon 3/9

7:29 pm-10:53 pm

Nonstop6h 24m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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, September is the cheapest month in which you can book a flight from Seattle to Pennsylvania (average of $42). Flying from Seattle to Pennsylvania in July is currently the most expensive (average of $237). 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 January 28, 2026.

It’s typically best to fly out from Seattle to Pennsylvania in the evening. Doing so could potentially save you 43% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 January 28, 2026.

The most flights from SEA to USPA are scheduled on a Monday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 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 January 28, 2026.
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.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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?

  • How long is the flight from Seattle to Pennsylvania?

    Airlines like Alaska Airlines, American Airlines, and Delta fly from Seattle to Pennsylvania in about 4h 35m. The time it takes to get you to your destination can typically vary by up to 5h 48m. The distance from Seattle to Pennsylvania is about 2117 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

    Consider Qatar Airways (100%), British Airways (100%) or American Airlines (89%) 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 $645 for a flight from Seattle to Pennsylvania. The cheapest flight overall is $112 while the most popular route, (Seattle/Tacoma Intl - Newark) is currently priced at $214.

  • 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, September is the cheapest month in which you can book a flight from Seattle to Pennsylvania (average of $42). Flying from Seattle to Pennsylvania in July is currently the most expensive (average of $237). 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

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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.

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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$258FlexibilityNo cancel feeOn-time65%
DeltaCheapest$123Average$395FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$131Average$286FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$168Average$433FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$177Average$398FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$178Average$449FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$193Average$481FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$202Average$564FlexibilityNo cancel feeOn-time75%

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