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Flights from Seattle-Tacoma International Airport (SEA) to Philadelphia Intl. Airport (PHL)
Flights to Philadelphia
Pennsylvania
United States of America
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Popular airlines from Seattle-Tacoma International Airport (SEA) to Philadelphia Intl. Airport (PHL)

Alaska Airlines
Delta
United
American Airlines
Southwest Airlines
Frontier Airlines
Sun Country Airlines

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Cheap Flights from Seattle to Philadelphia (SEA-PHL)

Prices were available within the past 7 days and start at NT$10,985 for one-way flights and NT$17,438 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Sat, Aug 22 - Sun, Aug 23

SEA

Seattle

PHL

Philadelphia

NT$17,438

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Aug 22 from Seattle to Philadelphia, returning Sun, Aug 23, priced at NT$17,438 Found 1 day ago

Sat, Aug 22 - Sun, Aug 23

SEA

Seattle

PHL

Philadelphia

NT$17,938

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Aug 22 from Seattle to Philadelphia, returning Sun, Aug 23, priced at NT$17,938 Found 1 day ago

Sat, Aug 22 - Sun, Aug 23

SEA

Seattle

PHL

Philadelphia

NT$18,256

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Aug 22 from Seattle to Philadelphia, returning Sun, Aug 23, priced at NT$18,256 Found 1 day ago

Sat, Aug 22 - Sun, Aug 23

SEA

Seattle

PHL

Philadelphia

NT$19,275

Roundtrip

Found 1 day ago

Select American Airlines flight, departing Sat, Aug 22 from Seattle to Philadelphia, returning Sun, Aug 23, priced at NT$19,275 Found 1 day ago

Fri, Aug 7 - Wed, Aug 12

SEA

Seattle

PHL

Philadelphia

NT$19,405

Roundtrip

Found 1 day ago

Select Delta flight, departing Fri, Aug 7 from Seattle to Philadelphia, returning Wed, Aug 12, priced at NT$19,405 Found 1 day ago

Sat, Aug 22 - Sun, Aug 23

SEA

Seattle

PHL

Philadelphia

NT$19,593

Roundtrip

Found 1 day ago

Select American Airlines flight, departing Sat, Aug 22 from Seattle to Philadelphia, returning Sun, Aug 23, priced at NT$19,593 Found 1 day ago

Fri, Aug 7 - Wed, Aug 12

SEA

Seattle

PHL

Philadelphia

NT$19,723

Roundtrip

Found 1 day ago

Select Delta flight, departing Fri, Aug 7 from Seattle to Philadelphia, returning Wed, Aug 12, priced at NT$19,723 Found 1 day ago

Fri, Aug 7 - Wed, Aug 12

SEA

Seattle

PHL

Philadelphia

NT$20,041

Roundtrip

Found 1 day ago

Select Delta flight, departing Fri, Aug 7 from Seattle to Philadelphia, returning Wed, Aug 12, priced at NT$20,041 Found 1 day ago

Fri, Aug 7 - Wed, Aug 12

SEA

Seattle

PHL

Philadelphia

NT$20,405

Roundtrip

Found 1 day ago

Select Delta flight, departing Fri, Aug 7 from Seattle to Philadelphia, returning Wed, Aug 12, priced at NT$20,405 Found 1 day ago

Fri, Aug 7 - Wed, Aug 12

SEA

Seattle

PHL

Philadelphia

NT$21,761

Roundtrip

Found 1 day ago

Select United flight, departing Fri, Aug 7 from Seattle to Philadelphia, returning Wed, Aug 12, priced at NT$21,761 Found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Philadelphia (PHL)

September is typically the cheapest month to fly

From NT$7,404 - NT$10,320 per traveler.

Travel information

Origin airport	Seattle-Tacoma International Airport
Destination airport	Philadelphia Intl. Airport
Distance	3,816 km away
Airlines serving	Alaska Airlines, Delta, United, American Airlines, Southwest Airlines, Frontier Airlines, Sun Country Airlines, JetBlue Airways
Popular airline	Alaska Airlines
Roundtrip price	NT$17,438
Average flight time	5 hours 55 mins

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Romantic Hotels in South Philadelphia
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Fitler Square Hotels
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Hotels with Bars in South Philadelphia
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Town Houses in Lansdowne
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Glenolden Hotels
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Luxury Hotels in East Passyunk Crossing
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Clifton Heights Hotels
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Washington Square West Hotels
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University City Hotels
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B&B in Crum Lynne
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Red Roof Inn Hotels in Ridley Park
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Pet-Friendly Hotels in Ridley Park
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Hotels near Philadelphia International Airport Terminal B Station
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Hotels near Citizens Bank Park
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Hotels near Children's Hospital of Philadelphia
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Historic Hotels in Philadelphia
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Hotels near Philadelphia Intl.
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Hotels near University of Pennsylvania
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Hotels with a Pool in Collingdale
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Resorts & Hotels with Spas in Philadelphia
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Condo Rentals in Folsom
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Pet-Friendly Hotels in South Philadelphia
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5 Star Hotels in Springfield
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Folcroft Hotels
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Flights from Tuscaloosa (TCL) to Philadelphia (PHL)
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Flights from Telluride (TEX) to Philadelphia (PHL)
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Flights from Frenchville (WFK) to Philadelphia (PHL)
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Flights from Tokyo (NRT) to Philadelphia (PHL)
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Flights from Stavanger (SVG) to Philadelphia (PHL)
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Flights from Miami (MIA) to Philadelphia (PHL)
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Flights from Pau (PUF) to Philadelphia (PHL)
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Flights from Folcroft
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Flights from Fort Pierce (FPR) to Philadelphia (PHL)
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Flights to Philadelphia Intl.
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Flights from Stavropol (STW) to Philadelphia (PHL)
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Flights from Wanigela (AGL) to Philadelphia (PHL)
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Flights from Ocean City (OCE) to Philadelphia (PHL)
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Flights from Sharon Hill
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Flights from Philadelphia Intl.
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Flights from Angra do Heroismo (TER) to Philadelphia (PHL)
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Flights from Siargao (IAO) to Philadelphia (PHL)
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Flights from Chania (CHQ) to Philadelphia (PHL)
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Flights from Bedford (BED) to Philadelphia (PHL)
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Flights from Exeter (EXT) to Philadelphia (PHL)
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Flights from Palmdale (PMD) to Philadelphia (PHL)
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American Swedish Historical Museum
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Franklin Institute Science Museum
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Visit Lester
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Visit South Philadelphia
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Visit Upper Darby
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University of Pennsylvania
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Visit Sharon Hill
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Folcroft Vacations
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Lincoln Financial Field
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Morton Morton House
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Visit Folcroft
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John Heinz National Wildlife Refuge at Tinicum
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Budget Rental Cars in Lester
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Europcar Rental Cars in Packer Park
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Payless Rental Cars in Southwest Philadelphia
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Hertz Rental Cars in Philadelphia Intl.
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Dollar Rental Cars in Swarthmore
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Europcar Rental Cars in Philadelphia Intl.
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Fullsize Car Rentals near Philadelphia Intl.
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Avis Rental Cars in Swarthmore
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Car rentals near National Shrine of St. Rita of Cascia
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Mex Rent A Car Rental Cars in Upper Darby
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Rental cars Philadelphia Intl. airport
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Midway Car Rental Rental Cars in Philadelphia Intl.
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Top Rent a Car Rental Cars in Philadelphia Intl.
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Europcar Rental Cars in University City
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Thrifty Car Rental Rental Cars in Philadelphia Intl.
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United Rental Cars in Philadelphia Intl.
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Avis Rental Cars in Philadelphia Intl.
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Avis Rental Cars in Secane
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Apex Car Rentals Rental Cars in Philadelphia Intl.
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Budget Rental Cars in Prospect Park
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NT$10,985 Cheap Flights from Seattle (SEA) to Philadelphia (PHL)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Philadelphia Intl. Airport (PHL)

Be in the know

Book smarter

Earn twice

Cheap Flights from Seattle to Philadelphia (SEA-PHL)

Find the cheapest month to fly from Seattle (SEA) to Philadelphia (PHL)

September is typically the cheapest month to flySeptember is typically the cheapest month to fly

Travel information

Explore a world of travel with Expedia

September is typically the cheapest month to fly