Seattle to Philadelphia
SEAPHL
Fly from Seattle to Philadelphia starting at USD 125 with F9.
Best fare available on Apr 26, 2026.
Limited seats. Better plans. Book before it's gone.
Seattle to Philadelphia cheapest flights this week
23 Apr
F9
20:56SEA
--:--PHL
1 Stop$178VIEW DEAL
26 Apr
F9
19:12SEA
--:--PHL
1 Stop$125VIEW DEAL
Seattle to Philadelphia monthly flight fare trend
Apr
from USD 125
May
No flights
Jun
No flights
Jul
No flights
Aug
No flights
Sep
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
