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$75+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHL
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
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 octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$177
(American Airlines)

One-way from

$75
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$357

Good round-trip deal

$317 or less

Good one-way deal

$168 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. 8% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 29, 2025.

This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/912:59 amSEA - PIT
1 stop7h 52mAmerican Airlines
lun. 11/176:40 pmPIT - SEA
1 stop7h 38mAmerican Airlines
Deal found 10/28$177
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/47:15 amSEA - PIT
1 stop8h 12mAmerican Airlines
mié. 12/106:30 amPIT - SEA
1 stop9h 08mAmerican Airlines
Deal found 10/28$179
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1312:58 pmSEA - PIT
1 stop24h 37mFrontier
lun. 11/175:30 pmPIT - SEA
1 stop21h 37mFrontier
Deal found 10/28$185
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/411:01 amSEA - PIT
Nonstop4h 35mAlaska Airlines
mié. 12/107:33 pmPIT - SEA
Nonstop5h 35mAlaska Airlines
Deal found 10/28$187
This American Airlines deal was found by Cheapflights users on 10/27. 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.
dom. 12/712:38 amSEA - PIT
1 stop8h 00mAmerican Airlines
lun. 12/83:04 pmPIT - SEA
1 stop8h 33mAmerican Airlines
Deal found 10/27$188
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/1210:58 pmSEA - PIT
1 stop7h 48mAmerican Airlines
sáb. 12/134:53 pmPIT - SEA
1 stop9h 32mAmerican Airlines
Deal found 10/28$194
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/191:37 pmSEA - JFK
1 stop19h 29mFrontier
mié. 12/34:29 pmJFK - SEA
1 stop22h 45mFrontier
Deal found 10/28$195
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
vie. 12/123:40 pmSEA - JFK
1 stop20h 49mFrontier
sáb. 1/106:59 amJFK - SEA
1 stop29h 35mFrontier
Deal found 10/27$196
This Southwest deal was found by Cheapflights users on 10/28. 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.
mié. 11/56:35 amSEA - PIT
1 stop6h 15mSouthwest
mié. 11/126:20 pmPIT - SEA
1 stop7h 35mSouthwest
Deal found 10/28$197
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
jue. 12/41:09 pmSEA - LGA
1 stop29h 51mFrontier
mar. 12/164:30 pmLGA - SEA
2 stops34h 40mFrontier
Deal found 10/27$199
This KAYAK deal was found by Cheapflights users on 10/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/118:48 amSEA - EWR
Nonstop5h 18mAlaska Airlines
vie. 11/147:29 pmEWR - SEA
Nonstop6h 21mAlaska Airlines
Deal found 10/27$200
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
lun. 11/1711:43 amSEA - JFK
1 stop15h 47mFrontier
dom. 11/231:01 pmJFK - SEA
1 stop25h 55mFrontier
Deal found 10/29$200

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 octubre 29, 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

mié. 11/5

6:00 am-5:28 pm

1 stop8h 28m

Pittsburgh

dom. 11/9

6:00 am-10:54 am

1 stop7h 54m

$197

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 11/10

6:14 am-2:30 pm

Nonstop5h 16m

Newark

jue. 11/13

9:20 am-12:39 pm

Nonstop6h 19m

$207

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

mié. 11/12

8:36 am-7:29 pm

1 stop7h 53m

Newark

vie. 11/14

3:30 pm-9:13 pm

1 stop8h 43m

$217

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 11/17

6:14 am-2:30 pm

Nonstop5h 16m

Newark

lun. 11/24

9:15 am-12:34 pm

Nonstop6h 19m

$222

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

jue. 1/8

10:58 am-10:58 pm

1 stop9h 00m

Newark

dom. 1/11

7:45 am-11:07 am

Nonstop6h 22m

$227

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

jue. 12/4

11:50 pm-7:59 am

Nonstop5h 09m

Newark

lun. 12/8

7:59 am-11:16 am

Nonstop6h 17m

$227

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

dom. 2/1

11:45 pm-7:59 am

Nonstop5h 14m

Newark

sáb. 2/28

7:54 am-11:14 am

Nonstop6h 20m

$232

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 11/24

6:14 am-2:30 pm

Nonstop5h 16m

Newark

jue. 12/4

7:59 am-11:16 am

Nonstop6h 17m

$244

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 2/2

8:15 pm-4:29 pm

1 stop17h 14m

Newark

mar. 2/10

7:29 pm-10:01 am

1 stop17h 32m

$246

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

jue. 12/11

8:45 am-6:30 am

1 stop18h 45m

Newark

lun. 12/15

7:50 am-4:36 pm

1 stop11h 46m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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 March is currently the most expensive (average of $242). 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 octubre 29, 2025.

It’s typically best to fly out from Seattle to Pennsylvania in the afternoon. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Seattle to Pennsylvania?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Pennsylvania. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Pennsylvania flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 29, 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
11,210 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,210 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
7,992 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,796 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,999 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 9 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 Delta, United Airlines, and Alaska Airlines fly from Seattle to Pennsylvania in about 5h 09m. The time it takes to get you to your destination can typically vary by up to 3h 19m. The distance from Seattle to Pennsylvania is about 2370 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?

    $75 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $89 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 - Newark or Seattle/Tacoma Intl - New York LaGuardia.

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

    Consider STARLUX Airlines (93%), Hawaiian Airlines (86%) or Alaska Airlines (84%) 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 $584 for a flight from Seattle to Pennsylvania. The cheapest flight overall is $123 while the most popular route, (Seattle/Tacoma Intl - New York John F Kennedy Intl) 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, 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 March is currently the most expensive (average of $242). 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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$291FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$138Average$258FlexibilityNo cancel feeOn-time65%
DeltaCheapest$149Average$417FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$178Average$423FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$194Average$466FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$206Average$530FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$222Average$445FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$233Average$355FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$254Average$527FlexibilityNo cancel feeOn-time75%

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