Cheap flights from Boston to San Diego Coast

View AU$181 flight on Sat, 6 Sep. 2025Opens in a new window

Popular airlines from Boston to San Diego Coast

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Boston (BOS) to San Diego Coast (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
Thu, 25 Sep. - Mon, 29 Sep.
BOS
Boston
SAN
San Diego
AU$421 Return, found 5 days ago
AU$421
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 25 Sep. from Boston to San Diego, returning Mon, 29 Sep., priced at AU$421 found 5 days ago
Delta
Thu, 25 Sep. - Mon, 29 Sep.
BOS
Boston
SAN
San Diego
AU$422 Return, found 5 days ago
AU$422
Return
found 5 days ago
Select Delta flight, departing Thu, 25 Sep. from Boston to San Diego, returning Mon, 29 Sep., priced at AU$422 found 5 days ago
Alaska Airlines
Thu, 21 Aug. - Sun, 14 Sep.
BOS
Boston
SAN
San Diego
AU$424 Return, found 1 day ago
AU$424
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 21 Aug. from Boston to San Diego, returning Sun, 14 Sep., priced at AU$424 found 1 day ago
Delta
Thu, 25 Sep. - Mon, 29 Sep.
BOS
Boston
SAN
San Diego
AU$437 Return, found 5 days ago
AU$437
Return
found 5 days ago
Select Delta flight, departing Thu, 25 Sep. from Boston to San Diego, returning Mon, 29 Sep., priced at AU$437 found 5 days ago
American Airlines
Thu, 25 Sep. - Mon, 29 Sep.
BOS
Boston
SAN
San Diego
AU$452 Return, found 5 days ago
AU$452
Return
found 5 days ago
Select American Airlines flight, departing Thu, 25 Sep. from Boston to San Diego, returning Mon, 29 Sep., priced at AU$452 found 5 days ago
United
Thu, 21 Aug. - Sun, 14 Sep.
BOS
Boston
SAN
San Diego
AU$515 Return, found 1 day ago
AU$515
Return
found 1 day ago
Select United flight, departing Thu, 21 Aug. from Boston to San Diego, returning Sun, 14 Sep., priced at AU$515 found 1 day ago

Find the cheapest month to fly from Boston (BOS) to San Diego (SAN)

August is typically the cheapest month to fly

From AU$191 - AU$421 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.