Seattle, WA to Philadelphia, PA flights

Flights starting at $56. Choose between Frontier Airlines, Spirit Airlines, or American Airlines to find the best price.

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Nonstop flights in September

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Seattle SEALas Vegas LASChicago ORDSeattle SEA
$232
Seattle SEALas Vegas LASSeattle SEA
$254
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Travelers usually depart from Seattle–Tacoma International, Seattle, WA - King Street Station, Seattle, WA - Greyhound Station, Seattle, WA - Ferry Terminal, or Seattle, WA - University of Washington when they travel from Seattle to Philadelphia. Book your trip to arrive at Philadelphia International, Philadelphia, PA Greyhound Terminal, Philadelphia, PA - 30th Street, Ardmore, PA station, or Philadelphia, PA - Market Street bus stop. The distance between Seattle and Philadelphia is 3821 km. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, American Airlines, Alaska Airlines, and United Airlines. Seattle and Philadelphia have 401 direct flights per week. When you arrive at Philadelphia, consider visiting National Mall, Times Square, Statue of Liberty, Empire State Building, Staten Island, Lincoln Memorial, Manhattan Island, Metropolitan Museum of Art, and Independence National Historical Park, PA, USA.

Weekly direct flights

Discover the top airlines offering direct flights from Seattle to Philadelphia in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 17.09 - Sat 23.09

AirlineSun 17.09Mon 18.09Tue 19.09Wed 20.09Thu 21.09Fri 22.09Sat 23.09
4443334
2222222

Weekly direct flights for Sun 24.09 - Sat 30.09

AirlineSun 24.09Mon 25.09Tue 26.09Wed 27.09Thu 28.09Fri 29.09Sat 30.09
3443344
2222222

Weekly direct flights for Sun 01.10 - Sat 07.10

AirlineSun 01.10Mon 02.10Tue 03.10Wed 04.10Thu 05.10Fri 06.10Sat 07.10
4434222
2222222

Weekly direct flights for Sun 08.10 - Sat 14.10

AirlineSun 08.10Mon 09.10Tue 10.10Wed 11.10Thu 12.10Fri 13.10Sat 14.10
2222112
2222222

Check-in for a flight from Seattle to Philadelphia

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAANoNo
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

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