Cheap flights from SeaTac to Oceanside

View AU$137 flight on Tue, 9 Dec. 2025Opens in a new window

Popular airlines from SeaTac to Oceanside

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Cheap Flights from SeaTac (SEA) to Oceanside (SAN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
SAN
San Diego
AU$242 Return, found 5 days ago
AU$242
Return
found 5 days ago
Select Delta flight, departing Tue, 2 Sep. from Seattle to San Diego, returning Tue, 9 Sep., priced at AU$242 found 5 days ago
Delta
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
SAN
San Diego
AU$272 Return, found 5 days ago
AU$272
Return
found 5 days ago
Select Delta flight, departing Tue, 2 Sep. from Seattle to San Diego, returning Tue, 9 Sep., priced at AU$272 found 5 days ago
Alaska Airlines
Sat, 16 Aug. - Mon, 18 Aug.
SEA
Seattle
SAN
San Diego
AU$274 Return, found 3 days ago
AU$274
Return
found 3 days ago
Select Alaska Airlines flight, departing Sat, 16 Aug. from Seattle to San Diego, returning Mon, 18 Aug., priced at AU$274 found 3 days ago
Alaska Airlines
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
SAN
San Diego
AU$287 Return, found 5 days ago
AU$287
Return
found 5 days ago
Select Alaska Airlines flight, departing Tue, 2 Sep. from Seattle to San Diego, returning Tue, 9 Sep., priced at AU$287 found 5 days ago
United
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
SAN
San Diego
AU$333 Return, found 5 days ago
AU$333
Return
found 5 days ago
Select United flight, departing Tue, 2 Sep. from Seattle to San Diego, returning Tue, 9 Sep., priced at AU$333 found 5 days ago
American Airlines
Fri, 5 Sep. - Mon, 15 Sep.
SEA
Seattle
CLD
Carlsbad
AU$361 Return, found 1 day ago
AU$361
Return
found 1 day ago
Select American Airlines flight, departing Fri, 5 Sep. from Seattle to Carlsbad, returning Mon, 15 Sep., priced at AU$361 found 1 day ago

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

November is typically the cheapest month to fly

From AU$124 - AU$419 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.