Cheap Flights from Boston to San Diego

View €67 flight on Wed, 10 Sep 2025Opens in a new window

Popular airlines from Boston to San Diego

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Cheap flights from Boston to San Diego (BOS-SAN)

Prices were available within the past 7 days and start at €67 for one-way flights and €202 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 23 Aug - Sat, 30 Aug
BOS
Boston
SAN
San Diego
€202 Return, found 6 days ago
€202
Return
found 6 days ago
Select Delta flight, departing Sat, 23 Aug from Boston to San Diego, returning Sat, 30 Aug, priced at €202 found 6 days ago
JetBlue Airways
Tue, 19 Aug - Tue, 26 Aug
BOS
Boston
SAN
San Diego
€203 Return, found 3 days ago
€203
Return
found 3 days ago
Select JetBlue Airways flight, departing Tue, 19 Aug from Boston to San Diego, returning Tue, 26 Aug, priced at €203 found 3 days ago
JetBlue Airways
Tue, 19 Aug - Tue, 26 Aug
BOS
Boston
SAN
San Diego
€212 Return, found 3 days ago
€212
Return
found 3 days ago
Select JetBlue Airways flight, departing Tue, 19 Aug from Boston to San Diego, returning Tue, 26 Aug, priced at €212 found 3 days ago
American Airlines
Sat, 23 Aug - Sat, 30 Aug
BOS
Boston
CLD
Carlsbad
€218 Return, found 6 days ago
€218
Return
found 6 days ago
Select American Airlines flight, departing Sat, 23 Aug from Boston to Carlsbad, returning Sat, 30 Aug, priced at €218 found 6 days ago
American Airlines
Sat, 23 Aug - Sat, 30 Aug
BOS
Boston
SAN
San Diego
€218 Return, found 6 days ago
€218
Return
found 6 days ago
Select American Airlines flight, departing Sat, 23 Aug from Boston to San Diego, returning Sat, 30 Aug, priced at €218 found 6 days ago
United
Tue, 19 Aug - Tue, 26 Aug
BOS
Boston
SAN
San Diego
€254 Return, found 3 days ago
€254
Return
found 3 days ago
Select United flight, departing Tue, 19 Aug from Boston to San Diego, returning Tue, 26 Aug, priced at €254 found 3 days ago

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

August is typically the cheapest month to fly

From €101 - €236 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.