Flights from Boston to San Juan (Puerto Rico)

Our cheapest offers for flights from Boston to San Juan (Puerto Rico)

Here you can compare cheap flights from Boston (BOS) to San Juan (Puerto Rico) (SJU) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Juan (Puerto Rico). Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Boston
San Juan (Puerto Rico)
Outbound
09/19/25
direct
DL1780
04h 05min
Return
09/29/25
direct
DL1780
04h 12min
Delta Air Lines ?
$187
Boston
San Juan (Puerto Rico)
Pay attention to transfer at connecting flight
Outbound
09/19/25
1 Stopover (DTW)
NK2328, NK3898
26h 51min
Return
09/29/25
2 Stopovers (DTW, FLL)
NK3899, NK1451, NK0616
30h 58min
Spirit Airlines
$288
Boston
San Juan (Puerto Rico)
Outbound
06/08/25
direct
F93001
04h 06min
Return
06/12/25
direct
F93002
04h 13min
Frontier Airlines ?
$209
Boston
San Juan (Puerto Rico)
Outbound
06/08/25
direct
F93001
04h 06min
Return
06/12/25
direct
F93002
04h 13min
Frontier Airlines
$214
Boston
San Juan (Puerto Rico)
Outbound
06/08/25
direct
F93001
04h 06min
Return
06/12/25
direct
F93002
04h 13min
Frontier Airlines
$225
Boston
San Juan (Puerto Rico)
Outbound
04/21/25
1 Stopover (ATL)
NK0217, NK0202
12h 27min
Return
05/19/25
1 Stopover (MCO)
NK3164, NK3796
10h 08min
Spirit Airlines
$232
Boston
San Juan (Puerto Rico)
Outbound
06/08/25
direct
F93001
04h 06min
Return
06/12/25
1 Stopover (MCO)
F91745, F93348
27h 37min
Frontier Airlines ?
$239
Boston
San Juan (Puerto Rico)
Outbound
04/21/25
1 Stopover (ATL)
NK0217, NK0202
12h 27min
Return
05/19/25
1 Stopover (MCO)
NK3164, NK3796
10h 08min
Spirit Airlines
$241
Boston
San Juan (Puerto Rico)
Outbound
06/08/25
direct
F93001
04h 06min
Return
06/12/25
direct
F93002
04h 13min
Frontier Airlines
$251
Boston
San Juan (Puerto Rico)
Outbound
04/21/25
1 Stopover (ATL)
NK0217, NK0202
12h 27min
Return
05/19/25
1 Stopover (MCO)
F92981, F93348
10h 30min
Spirit Airlines ?
$261
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Boston to San Juan (Puerto Rico)

Favorite airline: Spirit Airlines
81 % of bookings on this flight route are made with Spirit Airlines, American Airlines and Delta.
Spirit Airlines
43 %
American Airlines
24 %
Delta
14 %
Direct flights are more expensive
Compared to direct flights, flights with a stopover on this route are on average 23 % cheaper.
non stop flight
1 stop
2 stops
04h 05min
16h 07min
20h 26min
$255
$207
$830
The favorite connection is non-stop
Flights from Boston to San Juan (Puerto Rico) are most often booked as a direct flight.
Route
bookings
Direct flights
04h 05min, from $255
54 %
1 stopover Charlotte Douglas International Airport, NC
06h 42min, from $502
23 %
1 stopover Orlando International Airport, FL
16h 07min, from $207
12 %

Important flight information

Flight information: Boston - San Juan (Puerto Rico)

Roundtrip from $186.61
Flight duration min. 03:54 / max. 04:02
Return flight duration min. 04:07/ max. 04:12
Distance 2705 km
Flights per week 16
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport San Juan - Luis Muñoz Marín International Airport (SJU)
Destination country Flights to Puerto Rico
Alternative flights to San Juan (Puerto Rico)
Flight destinations with a similar price