Washington to San Diego
IADSAN
Fly from Washington to San Diego starting at USD 166 with Alaska Airlines.
Best fare available on Oct 31, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to San Diego cheapest flights this week
Washington to San Diego monthly flight fare trend
Oct
from USD 166
Nov
from USD 228
Dec
from USD 228
Jan
No flights
Feb
from USD 172
Mar
from USD 337
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
San Diego
San Diego International Airport (SAN)
San Diego, SAN
Zone
Los Angeles
Elev
17 ft
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