An Alaska Airlines plane taking off with a snow-capped mountain in the background.

₩268,200 Cheap Flights from Philadelphia (PHL) to Seattle (SEA)

Photo by Port of Seattle
Open Photo by Port of Seattle

Cheap Flights from Philadelphia to Seattle (PHL-SEA)

Prices were available within the past 7 days and start at ₩268,200 for one-way flights and ₩606,400 for roundtrip, for the period specified. Prices and availability are subject to change.
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩606,400
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩606,400 Found 3 days ago
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩619,800
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩619,800 Found 3 days ago
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩633,200
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩633,200 Found 3 days ago
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩655,200
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩655,200 Found 3 days ago
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩668,600
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩668,600 Found 3 days ago
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩723,000
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩723,000 Found 3 days ago
Delta
Sat, Oct 24 - Tue, Oct 27
PHL
Philadelphia
SEA
Seattle
₩730,900
Roundtrip
Found 4 days ago
Select Delta flight, departing Sat, Oct 24 from Philadelphia to Seattle, returning Tue, Oct 27, priced at ₩730,900 Found 4 days ago
Delta
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩736,400
Roundtrip
Found 3 days ago
Select Delta flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩736,400 Found 3 days ago
Delta
Sat, Oct 24 - Tue, Oct 27
PHL
Philadelphia
SEA
Seattle
₩744,400
Roundtrip
Found 4 days ago
Select Delta flight, departing Sat, Oct 24 from Philadelphia to Seattle, returning Tue, Oct 27, priced at ₩744,400 Found 4 days ago
American Airlines
Fri, Oct 23 - Mon, Oct 26
PHL
Philadelphia
SEA
Seattle
₩782,800
Roundtrip
Found 3 days ago
Select American Airlines flight, departing Fri, Oct 23 from Philadelphia to Seattle, returning Mon, Oct 26, priced at ₩782,800 Found 3 days ago

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

October is typically the cheapest month to fly

From ₩392,116 - ₩538,346 per traveler.

Travel information

Origin airport
Philadelphia Intl. Airport
Destination airport
Seattle-Tacoma International Airport
Distance
3,816 km away
Airlines serving
Alaska Airlines, American Airlines, Delta, United, Southwest Airlines, JetBlue Airways, Sun Country Airlines, Frontier Airlines
Popular airline
Alaska Airlines
Roundtrip price
₩606,400
Average flight time
6 hours 8 mins
*Available to One Key members.