Cheap flights from Boston to San Juan

View AU$183 flight on Fri, 17 Oct. 2025Opens in a new window

Popular airlines from Boston to San Juan

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Cheap Flights from Boston (BOS) to San Juan (SJU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 17 Oct. - Fri, 31 Oct.
PVD
Providence
SJU
San Juan
AU$352 Return, found 6 days ago
AU$352
Return
found 6 days ago
Select Delta flight, departing Fri, 17 Oct. from Providence to San Juan, returning Fri, 31 Oct., priced at AU$352 found 6 days ago
Delta
Wed, 21 Jan. - Mon, 26 Jan.
BOS
Boston
SJU
San Juan
AU$413 Return, found 14 hours ago
AU$413
Return
found 14 hours ago
Select Delta flight, departing Wed, 21 Jan. from Boston to San Juan, returning Mon, 26 Jan., priced at AU$413 found 14 hours ago
Delta
Fri, 17 Oct. - Fri, 31 Oct.
PVD
Providence
SJU
San Juan
AU$426 Return, found 6 days ago
AU$426
Return
found 6 days ago
Select Delta flight, departing Fri, 17 Oct. from Providence to San Juan, returning Fri, 31 Oct., priced at AU$426 found 6 days ago
JetBlue Airways
Thu, 22 Jan. - Fri, 23 Jan.
BOS
Boston
SJU
San Juan
AU$465 Return, found 14 hours ago
AU$465
Return
found 14 hours ago
Select JetBlue Airways flight, departing Thu, 22 Jan. from Boston to San Juan, returning Fri, 23 Jan., priced at AU$465 found 14 hours ago
American Airlines
Wed, 21 Jan. - Mon, 26 Jan.
BOS
Boston
SJU
San Juan
AU$481 Return, found 14 hours ago
AU$481
Return
found 14 hours ago
Select American Airlines flight, departing Wed, 21 Jan. from Boston to San Juan, returning Mon, 26 Jan., priced at AU$481 found 14 hours ago
United
Wed, 21 Jan. - Mon, 26 Jan.
BOS
Boston
SJU
San Juan
AU$488 Return, found 14 hours ago
AU$488
Return
found 14 hours ago
Select United flight, departing Wed, 21 Jan. from Boston to San Juan, returning Mon, 26 Jan., priced at AU$488 found 14 hours ago

Find the cheapest month to fly from Boston (BOS) to San Juan (SJU)

January is typically the cheapest month to fly

From AU$153 - AU$525 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.