San Francisco to Seattle
SFOSEA
Fly from San Francisco to Seattle starting at USD 128 with Frontier Airlines.
Best fare available on Jul 27, 2026.
Limited seats. Better plans. Book before it's gone.
San Francisco to Seattle cheapest flights this week
San Francisco to Seattle monthly flight fare trend
Jul
from USD 128
Aug
from USD 73
Sep
from USD 69
Oct
from USD 74
Nov
No flights
Dec
No flights
Airport Details
Origin
San Francisco
San Francisco International Airport (SFO)
San Francisco, SFO
Zone
Los Angeles
Elev
13 ft
Destination
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
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