Our cheapest offers for flights from Boston to Costa Rica

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

Flights from Boston (BOS) to San Jose, Costa Rica (SJO)

	Outbound	Return	Airlines	Baggage	Price
Boston San Jose, Costa Rica Pay attention to transfer at connecting flight	Outbound 04/21/25 2 Stopovers (ATL, FLL) NK0217, NK0442, NK0335 16h 15min	Return 05/19/25 3 Stopovers (MCO, IAH, ATL) NK1310, NK1576, NK3155, NK3380 23h 49min	Spirit Airlines		$356
Best option Boston San Jose, Costa Rica	Outbound 04/21/25 1 Stopover (PTY) CM0705, CM0787 18h 00min	Return 05/19/25 1 Stopover (PTY) CM0839, CM0366 23h 19min	Copa Airlines	?	$367
Boston San Jose, Costa Rica	Outbound 04/21/25 1 Stopover (PTY) CM0705, CM0779 23h 45min	Return 05/19/25 1 Stopover (PTY) CM0839, CM0366 23h 19min	Copa Airlines	?	$369