San Francisco to Seattle

SFOSEA

Fly from San Francisco to Seattle starting at USD 49 with Alaska Airlines.Best fare available on Nov 18, 2026.Limited seats. Better plans. Book before it's gone.

San Francisco to Seattle cheapest flights this week

13 Nov
Frontier Airlines
22:23SFO
10:59SEA
1 StopUSD 89VIEW DEAL
13 Nov
United Airlines
07:25SFO
09:40SEA
DirectUSD 99VIEW DEAL
15 Nov
Alaska Airlines
06:08SFO
08:22SEA
DirectUSD 99VIEW DEAL
16 Nov
Frontier Airlines
06:02SFO
15:12SEA
1 StopUSD 226VIEW DEAL
18 Nov
Alaska Airlines
08:33SFO
10:52SEA
DirectUSD 49VIEW DEAL
18 Nov
United Airlines
12:22SFO
14:39SEA
DirectUSD 77VIEW DEAL
18 Nov
Alaska Airlines
10:39SFO
12:56SEA
DirectUSD 79VIEW DEAL
22 Nov
Frontier Airlines
06:15SFO
15:22SEA
1 StopUSD 177VIEW DEAL
28 Nov
Frontier Airlines
22:59SFO
09:03SEA
1 StopUSD 242VIEW DEAL
7 Dec
Alaska Airlines
06:00SFO
08:16SEA
DirectUSD 80VIEW DEAL

San Francisco to Seattle monthly flight fare trend

Nov
from USD 49
Dec
from USD 79
Jan
No flights
Feb
from USD 69
Mar
from USD 136
Apr
from USD 165

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

Flights from San Francisco

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