Cheap flights from Boston to San Diego Coast

View AU$182 flight on Wed, 17 Sep. 2025Opens in a new window

Popular airlines from Boston to San Diego Coast

  • Alaska Airlines

    Alaska Airlines

  • JetBlue Airways

    JetBlue Airways

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

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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.

American Airlines
Thu, 18 Sep. - Thu, 25 Sep.
BOS
Boston
SAN
San Diego
AU$541 Return, found 1 day ago
AU$541
Return
found 1 day ago
Select American Airlines flight, departing Thu, 18 Sep. from Boston to San Diego, returning Thu, 25 Sep., priced at AU$541 found 1 day ago
American Airlines
Mon, 24 Nov. - Mon, 29 Dec.
BOS
Boston
SAN
San Diego
AU$556 Return, found 1 day ago
AU$556
Return
found 1 day ago
Select American Airlines flight, departing Mon, 24 Nov. from Boston to San Diego, returning Mon, 29 Dec., priced at AU$556 found 1 day ago
American Airlines
Thu, 18 Sep. - Thu, 25 Sep.
BOS
Boston
SAN
San Diego
AU$587 Return, found 1 day ago
AU$587
Return
found 1 day ago
Select American Airlines flight, departing Thu, 18 Sep. from Boston to San Diego, returning Thu, 25 Sep., priced at AU$587 found 1 day ago
Alaska Airlines
Mon, 24 Nov. - Mon, 29 Dec.
BOS
Boston
SAN
San Diego
AU$604 Return, found 1 day ago
AU$604
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 24 Nov. from Boston to San Diego, returning Mon, 29 Dec., priced at AU$604 found 1 day ago
United
Thu, 18 Sep. - Thu, 25 Sep.
BOS
Boston
SAN
San Diego
AU$664 Return, found 1 day ago
AU$664
Return
found 1 day ago
Select United flight, departing Thu, 18 Sep. from Boston to San Diego, returning Thu, 25 Sep., priced at AU$664 found 1 day ago
Delta
Mon, 24 Nov. - Mon, 29 Dec.
BOS
Boston
SAN
San Diego
AU$666 Return, found 1 day ago
AU$666
Return
found 1 day ago
Select Delta flight, departing Mon, 24 Nov. from Boston to San Diego, returning Mon, 29 Dec., priced at AU$666 found 1 day ago

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

March is typically the cheapest month to fly

From AU$261 - AU$571 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.