Cheap Flights from Boston to San Juan
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RatePunk searches hundreds of travel sites at once for deals on flights to San Juan
Prices updated 7 days ago
483 airlines compared
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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 Juan
Explore current cheapest deals departing from Boston to San Juan
2027-01-23 – 2027-01-27
BOS - San Juan
48% AI deal score
$222
$258
Round trip
2027-01-17 – 2027-01-20
BOS - San Juan
48% AI deal score
$218
$263
Round trip
2027-01-23 – 2027-02-03
BOS - San Juan
47% AI deal score
$200
$265
Round trip
2027-01-17 – 2027-01-27
BOS - San Juan
47% AI deal score
$199
$266
Round trip
2027-01-10 – 2027-01-20
BOS - San Juan
47% AI deal score
$194
$269
Round trip
2027-01-10 – 2027-01-27
BOS - San Juan
46% AI deal score
$187
$271
Round trip
2027-01-17 – 2027-02-03
BOS - San Juan
47% AI deal score
$191
$273
Round trip
2027-01-30 – 2027-02-03
BOS - San Juan
48% AI deal score
$229
$275
Round trip
2027-01-23 – 2027-01-29
BOS - San Juan
47% AI deal score
$217
$276
Round trip
2027-01-10 – 2027-02-03
BOS - San Juan
46% AI deal score
$184
$279
Round trip
