San Francisco to Boston Flights — [2026]
Browse current best options from San Francisco. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
San Francisco
RatePunk searches hundreds of travel sites at once for deals on flights to Boston
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 San Francisco to Boston
Explore current cheapest deals departing from San Francisco to Boston
2027-01-26 – 2027-02-23
SFO - Boston
85% AI deal score
$253
$187
Round trip
2027-02-10 – 2027-02-23
SFO - Boston
90% AI deal score
$316
$193
Round trip
2027-01-26 – 2027-02-02
SFO - Boston
88% AI deal score
$286
$193
Round trip
2027-02-09 – 2027-02-23
SFO - Boston
90% AI deal score
$320
$193
Round trip
2027-01-20 – 2027-02-02
SFO - Boston
86% AI deal score
$260
$193
Round trip
2027-01-12 – 2027-01-20
SFO - Boston
87% AI deal score
$266
$193
Round trip
2027-02-06 – 2027-02-09
SFO - Boston
91% AI deal score
$343
$193
Round trip
2027-02-09 – 2027-03-02
SFO - Boston
90% AI deal score
$314
$194
Round trip
2027-02-10 – 2027-03-02
SFO - Boston
90% AI deal score
$310
$194
Round trip
2027-01-20 – 2027-01-26
SFO - Boston
88% AI deal score
$282
$194
Round trip
