Cheap Flights from Boston to San Diego
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Deals from
Boston
RatePunk searches hundreds of travel sites at once for deals on flights to San Diego
Prices updated 7 days ago
483 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Oct 26, 2026.)
Today’s best flight deals from Boston to San Diego
Explore current cheapest deals departing from Boston to San Diego
2026-11-22 – 2026-11-26
BOS - San Diego
92% AI deal score
$283
$126
Round trip
2026-11-18 – 2026-11-23
BOS - San Diego
91% AI deal score
$278
$135
Round trip
2026-11-19 – 2026-11-23
BOS - San Diego
91% AI deal score
$284
$135
Round trip
2026-11-16 – 2026-11-23
BOS - San Diego
91% AI deal score
$269
$135
Round trip
2027-03-22 – 2027-03-30
BOS - San Diego
92% AI deal score
$319
$135
Round trip
2027-03-23 – 2027-03-30
BOS - San Diego
92% AI deal score
$326
$135
Round trip
2027-03-24 – 2027-03-30
BOS - San Diego
92% AI deal score
$326
$135
Round trip
2027-03-23 – 2027-03-31
BOS - San Diego
92% AI deal score
$323
$135
Round trip
2027-03-22 – 2027-03-31
BOS - San Diego
92% AI deal score
$318
$135
Round trip
2027-03-24 – 2027-03-31
BOS - San Diego
92% AI deal score
$326
$135
Round trip
