Cheap Flights from Seattle to San Diego: SEA→SAN from HK$938

View HK$938 flight on Thu, 11 Sep 2025Opens in a new window

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Find Cheap Flights from Seattle (SEA) to San Diego (SAN)

Prices were available within the past 7 days and start at HK$938 for one-way flights and HK$1,554 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 11 Sep - Thu, 18 Sep
SEA
Seattle
SAN
San Diego
HK$1,554 Return, found 5 days ago
HK$1,554
Return
found 5 days ago
Select Delta flight, departing Thu, 11 Sep from Seattle to San Diego, returning Thu, 18 Sep, priced at HK$1,554 found 5 days ago
Delta
Fri, 19 Sep - Fri, 26 Sep
SEA
Seattle
SAN
San Diego
HK$1,790 Return, found 6 days ago
HK$1,790
Return
found 6 days ago
Select Delta flight, departing Fri, 19 Sep from Seattle to San Diego, returning Fri, 26 Sep, priced at HK$1,790 found 6 days ago
Delta
Thu, 11 Sep - Thu, 18 Sep
SEA
Seattle
SAN
San Diego
HK$2,102 Return, found 5 days ago
HK$2,102
Return
found 5 days ago
Select Delta flight, departing Thu, 11 Sep from Seattle to San Diego, returning Thu, 18 Sep, priced at HK$2,102 found 5 days ago
Delta
Thu, 11 Sep - Thu, 18 Sep
SEA
Seattle
SAN
San Diego
HK$2,104 Return, found 5 days ago
HK$2,104
Return
found 5 days ago
Select Delta flight, departing Thu, 11 Sep from Seattle to San Diego, returning Thu, 18 Sep, priced at HK$2,104 found 5 days ago
American Airlines
Thu, 11 Sep - Thu, 18 Sep
SEA
Seattle
SAN
San Diego
HK$2,263 Return, found 5 days ago
HK$2,263
Return
found 5 days ago
Select American Airlines flight, departing Thu, 11 Sep from Seattle to San Diego, returning Thu, 18 Sep, priced at HK$2,263 found 5 days ago
United
Thu, 11 Sep - Thu, 18 Sep
SEA
Seattle
SAN
San Diego
HK$2,265 Return, found 5 days ago
HK$2,265
Return
found 5 days ago
Select United flight, departing Thu, 11 Sep from Seattle to San Diego, returning Thu, 18 Sep, priced at HK$2,265 found 5 days ago

Find the cheapest month to fly from Seattle (SEA) to San Diego (SAN)

November is typically the cheapest month to fly

From HK$636 - HK$1,952 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.