Flights to Isla Caja de Muertos from Boston - ￥19,320

View ￥19,320 flight on Wed, Sep 24, 2025Opens in a new window

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Cheap Flights from Boston to Isla Caja de Muertos (BOS-SJU)

Prices were available within the past 7 days and start at ￥19,320 for one-way flights and ￥91,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Aug 28 - Mon, Sep 1
BOS
Boston
SJU
San Juan
￥91,400 Roundtrip, found 1 day ago
￥91,400
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 28 from Boston to San Juan, returning Mon, Sep 1, priced at ￥91,400 found 1 day ago
American Airlines
Thu, Aug 28 - Mon, Sep 1
BOS
Boston
SJU
San Juan
￥96,600 Roundtrip, found 1 day ago
￥96,600
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 28 from Boston to San Juan, returning Mon, Sep 1, priced at ￥96,600 found 1 day ago
Delta
Thu, Aug 28 - Mon, Sep 1
BOS
Boston
SJU
San Juan
￥101,580 Roundtrip, found 1 day ago
￥101,580
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Aug 28 from Boston to San Juan, returning Mon, Sep 1, priced at ￥101,580 found 1 day ago
American Airlines
Thu, Aug 28 - Mon, Sep 1
BOS
Boston
SJU
San Juan
￥104,600 Roundtrip, found 1 day ago
￥104,600
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 28 from Boston to San Juan, returning Mon, Sep 1, priced at ￥104,600 found 1 day ago
American Airlines
Thu, Aug 28 - Mon, Sep 1
BOS
Boston
SJU
San Juan
￥106,800 Roundtrip, found 1 day ago
￥106,800
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 28 from Boston to San Juan, returning Mon, Sep 1, priced at ￥106,800 found 1 day ago
United
Thu, Aug 28 - Mon, Sep 1
BOS
Boston
SJU
San Juan
￥125,860 Roundtrip, found 1 day ago
￥125,860
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 28 from Boston to San Juan, returning Mon, Sep 1, priced at ￥125,860 found 1 day ago

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

August is typically the cheapest month to fly

From ￥14,360 - ￥40,819 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.