Cheap Flights from Boston to Puerto Rico Island

View €106 flight on Mon, 21 Jul 2025Opens in a new window

Popular airlines from Boston to Puerto Rico Island

  • American Airlines

    American Airlines

  • JetBlue Airways

    JetBlue Airways

  • Delta

    Delta

  • United

    United

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Cheap flights from Boston to Puerto Rico Island (BOS-SJU)

Prices were available within the past 7 days and start at €106 for one-way flights and €209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, 16 Sep - Fri, 19 Sep
BOS
Boston
SJU
San Juan
€209 Return, found 4 days ago
€209
Return
found 4 days ago
Select JetBlue Airways flight, departing Tue, 16 Sep from Boston to San Juan, returning Fri, 19 Sep, priced at €209 found 4 days ago
Delta
Tue, 16 Sep - Fri, 19 Sep
BOS
Boston
SJU
San Juan
€209 Return, found 4 days ago
€209
Return
found 4 days ago
Select Delta flight, departing Tue, 16 Sep from Boston to San Juan, returning Fri, 19 Sep, priced at €209 found 4 days ago
American Airlines
Tue, 16 Sep - Fri, 19 Sep
BOS
Boston
SJU
San Juan
€216 Return, found 4 days ago
€216
Return
found 4 days ago
Select American Airlines flight, departing Tue, 16 Sep from Boston to San Juan, returning Fri, 19 Sep, priced at €216 found 4 days ago
JetBlue Airways
Tue, 16 Sep - Fri, 19 Sep
BOS
Boston
SJU
San Juan
€220 Return, found 4 days ago
€220
Return
found 4 days ago
Select JetBlue Airways flight, departing Tue, 16 Sep from Boston to San Juan, returning Fri, 19 Sep, priced at €220 found 4 days ago
Delta
Tue, 16 Sep - Fri, 19 Sep
BOS
Boston
SJU
San Juan
€225 Return, found 4 days ago
€225
Return
found 4 days ago
Select Delta flight, departing Tue, 16 Sep from Boston to San Juan, returning Fri, 19 Sep, priced at €225 found 4 days ago
United
Tue, 16 Sep - Fri, 19 Sep
BOS
Boston
SJU
San Juan
€292 Return, found 4 days ago
€292
Return
found 4 days ago
Select United flight, departing Tue, 16 Sep from Boston to San Juan, returning Fri, 19 Sep, priced at €292 found 4 days ago

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

August is typically the cheapest month to fly

From €84 - €237 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.