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

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
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How to find the cheapest flight from Boston (BOS) to San Diego (SAN)

How to find the cheapest flight from Boston (BOS) to San Diego (SAN)
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How to find the cheapest flight from Boston (BOS) to San Diego (SAN)
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How to find the cheapest flight from Boston (BOS) to San Diego (SAN)
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Cheap flights from Boston to San Diego in April , May 2026

29 Apr - 19 May $ 487.00
BOS
Boston
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska Airlines
DIRECT
BOS
Boston
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28 Apr - 09 May $ 562.00
BOS
Boston
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
BOS
Boston
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29 Apr - 09 May $ 602.00
BOS
Boston
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska Airlines
DIRECT
BOS
Boston
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Last minute flights from Boston to San Diego

27 Apr - 30 Apr $ 494.00
BOS
Boston
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
BOS
Boston
Pick dates
25 Apr - 30 Apr $ 517.00
BOS
Boston
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
BOS
Boston
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28 Apr - 30 Apr $ 715.00
BOS
Boston
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska Airlines
DIRECT
BOS
Boston
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One-way flights to San Diego from Boston

6:00 AM - 8:46 AM
United Airlines
1 Stops
8h 25m
BOS - SAN
$ 209
Kiwi
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6:00 AM - 8:46 AM
United Airlines
1 Stops
8h 25m
BOS - SAN
$ 209
Kiwi
Pick dates
5:56 PM - 5:56 PM
Alaska Airlines
0 Stops
6h 33m
BOS - SAN
$ 389
Kiwi
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How to find the cheapest flight from Boston (BOS) to San Diego (SAN)

Related info for your journey
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How to find the cheapest flight from Boston (BOS) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.