Seattle to San Diego

SEASAN

Fly from Seattle to San Diego starting at USD 100 with Southwest Airlines.Best fare available on Sep 12, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to San Diego cheapest flights this week

9 Sept
Frontier Airlines
10:53SEA
18:19SAN
2 StopUSD 184VIEW DEAL
10 Sept
Frontier Airlines
16:27SEA
23:51SAN
1 StopUSD 151VIEW DEAL
11 Sept
Frontier Airlines
16:27SEA
23:51SAN
1 StopUSD 136VIEW DEAL
11 Sept
Alaska Airlines
07:40SEA
10:46SAN
DirectUSD 132VIEW DEAL
12 Sept
Southwest Airlines
09:15SEA
12:00SAN
DirectUSD 100VIEW DEAL
12 Sept
Frontier Airlines
16:27SEA
18:19SAN
2 StopUSD 312VIEW DEAL
13 Sept
Frontier Airlines
21:45SEA
18:19SAN
2 StopUSD 355VIEW DEAL
14 Sept
Frontier Airlines
19:45SEA
16:59SAN
1 StopUSD 151VIEW DEAL
17 Sept
Frontier Airlines
16:27SEA
23:51SAN
1 StopUSD 150VIEW DEAL
18 Sept
Frontier Airlines
16:27SEA
23:51SAN
1 StopUSD 142VIEW DEAL

Seattle to San Diego monthly flight fare trend

Sep
from USD 75
Oct
from USD 52
Nov
from USD 89
Dec
from USD 67
Jan
from USD 151
Feb
No flights

Airport Details

Origin

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

Destination

San Diego

San Diego International Airport (SAN)

San Diego, SAN
Zone

Los Angeles

Elev

17 ft

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