Flight Routes from Boston to San Jose, Costa Rica

Trip type

Our cheapest offers for flights from Boston to San Jose, Costa Rica

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

Outbound Return Airlines Shop Baggage Price
Boston
San Jose, Costa Rica
Outbound
06/25/26
2 Stopovers (CLT, MIA)
AA1548, AA1596, AA1593
27h 37min
Return
06/30/26
2 Stopovers (MIA, CLT)
AA1788, AA1212, AA1533
18h 03min
American Airlines ?
$424
Best option
Boston
San Jose, Costa Rica
Outbound
06/25/26
1 Stopover (SAL)
AV0445, AV0651
08h 50min
Return
06/30/26
1 Stopover (SAL)
AV0650, AV0444
07h 45min
Avianca
$606
Boston
San Jose, Costa Rica
Outbound
06/25/26
3 Stopovers (EWR, DFW, MIA)
UA1833, AA1810, AA3055, AA1593
31h 50min
Return
06/30/26
2 Stopovers (MIA, DCA)
AA1788, AA0708, AA1582
18h 44min
United Airlines, American Airlines ?
$584
Boston
San Jose, Costa Rica
Outbound
06/25/26
1 Stopover (SAL)
AV0445, AV0651
08h 50min
Return
06/30/26
1 Stopover (SDQ)
DM4461, DM2002
12h 57min
Avianca
$640
Boston
San Jose, Costa Rica
Outbound
06/25/26
2 Stopovers (ORD, IAH)
UA1475, UA1799, UA1280
30h 29min
Return
06/30/26
2 Stopovers (IAH, IAD)
UA1097, UA1549, UA0755
21h 29min
United Airlines
$649
Boston
San Jose, Costa Rica
Outbound
06/25/26
1 Stopover (DFW)
AA0479, AA0467
15h 42min
Return
06/30/26
2 Stopovers (MIA, CLT)
AA1788, AA2187, AA1843
31h 32min
American Airlines ?
$657
Boston
San Jose, Costa Rica
Outbound
06/25/26
1 Stopover (SAL)
AV0445, AV0651
08h 50min
Return
06/30/26
1 Stopover (SAL)
AV0650, AV0444
07h 45min
Avianca ?
$666
Boston
San Jose, Costa Rica
Outbound
06/25/26
1 Stopover (DFW)
AA2527, AA0467
18h 42min
Return
06/30/26
1 Stopover (DFW)
AA0476, AA1583
19h 41min
American Airlines ?
$1,272
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Boston - San Jose, Costa Rica

Roundtrip from $423.49
Distance 3826 km
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport San Jose, Costa Rica (SJO)
Destination country Flights to Costa Rica
Alternative flights to San Jose, Costa Rica
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