Seattle to Philadelphia
SEAPHL
Fly from Seattle to Philadelphia starting at USD 96 with Frontier Airlines.
Best fare available on Aug 5, 2026.
Limited seats. Better plans. Book before it's gone.
Seattle to Philadelphia cheapest flights this week
Seattle to Philadelphia monthly flight fare trend
May
from USD 125
Jun
from USD 174
Jul
No flights
Aug
from USD 96
Sep
No flights
Oct
No flights
Airport Details
Origin
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
Destination
Philadelphia
Philadelphia International Airport (PHL)
Philadelphia, PHL
Zone
New York
Elev
36 ft
Flights from Seattle
Flights from Seattle to AtlantaFlights from Seattle to AustinFlights from Seattle to BostonFlights from Seattle to CharlotteFlights from Seattle to DenverFlights from Seattle to DallasFlights from Seattle to DetroitFlights from Seattle to NewarkFlights from Seattle to Fort LauderdaleFlights from Seattle to Honolulu
