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
Boston
San Juan (Puerto Rico)
Outbound
09/23/25
1 Stopover (MCO)
NK3797, NK3166
08h 31min
Return
09/30/25
direct
B60562
04h 04min
Spirit Airlines ?
$160
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
09/23/25
1 Stopover (MIA)
AA0873, AA1364
10h 47min
Return
09/30/25
direct
B60862
04h 09min
American Airlines ?
$172
Boston
San Juan (Puerto Rico)
Outbound
07/08/25
1 Stopover (FLL)
NK2127, NK1396
17h 22min
Return
08/07/25
direct
NK1840
04h 17min
Spirit Airlines
$197
Boston
San Juan (Puerto Rico)
Outbound
10/18/25
direct
B60261
04h 00min
Return
10/24/25
direct
B60562
04h 04min
JetBlue Airways ?
$198
Boston
San Juan (Puerto Rico)
Outbound
07/08/25
1 Stopover (FLL)
NK2127, NK1396
17h 22min
Return
08/07/25
direct
NK1840
04h 17min
Spirit Airlines
$204
Boston
San Juan (Puerto Rico)
Outbound
11/03/25
1 Stopover (MCO)
F93347, F93506
13h 36min
Return
11/12/25
1 Stopover (MCO)
F94725, F93348
16h 51min
Frontier Airlines ?
$206
Boston
San Juan (Puerto Rico)
Outbound
07/08/25
1 Stopover (FLL)
NK2127, NK1396
17h 22min
Return
08/07/25
direct
NK1840
04h 17min
Spirit Airlines
$207
Boston
San Juan (Puerto Rico)
Outbound
07/08/25
1 Stopover (ATL)
NK2091, NK2711
14h 07min
Return
08/07/25
direct
NK1840
04h 17min
Spirit Airlines
$216
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 $159.34
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