Cheap flights from SeaTac to Oceanside

View AU$149 flight on Sat, 27 Sep. 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.

Alaska Airlines
Sat, 16 Aug. - Mon, 18 Aug.
SEA
Seattle
SAN
San Diego
AU$285 Return, found 1 day ago
AU$285
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 16 Aug. from Seattle to San Diego, returning Mon, 18 Aug., priced at AU$285 found 1 day ago
Alaska Airlines
Sat, 16 Aug. - Mon, 18 Aug.
SEA
Seattle
SAN
San Diego
AU$300 Return, found 1 day ago
AU$300
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 16 Aug. from Seattle to San Diego, returning Mon, 18 Aug., priced at AU$300 found 1 day ago
Alaska Airlines
Fri, 5 Sep. - Mon, 15 Sep.
PAE
Seattle
SAN
San Diego
AU$302 Return, found 4 days ago
AU$302
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 5 Sep. from Seattle to San Diego, returning Mon, 15 Sep., priced at AU$302 found 4 days ago
Delta
Fri, 5 Sep. - Mon, 15 Sep.
SEA
Seattle
SAN
San Diego
AU$303 Return, found 4 days ago
AU$303
Return
found 4 days ago
Select Delta flight, departing Fri, 5 Sep. from Seattle to San Diego, returning Mon, 15 Sep., priced at AU$303 found 4 days ago
American Airlines
Fri, 5 Sep. - Mon, 15 Sep.
SEA
Seattle
CLD
Carlsbad
AU$361 Return, found 4 days ago
AU$361
Return
found 4 days ago
Select American Airlines flight, departing Fri, 5 Sep. from Seattle to Carlsbad, returning Mon, 15 Sep., priced at AU$361 found 4 days ago
Hawaiian Airlines
Tue, 5 Aug. - Sun, 17 Aug.
SEA
Seattle
SAN
San Diego
AU$509 Return, found 2 days ago
AU$509
Return
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, 5 Aug. from Seattle to San Diego, returning Sun, 17 Aug., priced at AU$509 found 2 days 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.