Our cheapest offers for flights from Boston to Puerto Rico

Here you can compare cheap flights from Boston (BOS) to Puerto Rico 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 Puerto Rico. Prices and availability may change at any time.

Flights from Boston (BOS) to San Juan (Puerto Rico) (SJU)

	Outbound	Return	Airlines	Baggage	Price
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
Best option Boston San Juan (Puerto Rico)	Outbound 06/10/25 direct F93001 04h 06min	Return 06/29/25 direct F93002 04h 13min	Frontier Airlines		$270
Boston San Juan (Puerto Rico)	Outbound 04/12/25 1 Stopover (ATL) NK0217, NK0202 12h 35min	Return 04/27/25 1 Stopover (MCO) NK0432, NK0992 11h 11min	Spirit Airlines	?	$235 found 3 days ago