Boston (BOS) to Guanacaste (LIR) flights
2 airlines fly nonstop from Boston (BOS) to Guanacaste (LIR): Delta Air Lines and JetBlue Airways. The two airports are 2,364 miles (3,804 km) apart. Delta Air Lines is in SkyTeam. There are also 19 ways to fly it with one stop, through Miami, Fort Lauderdale and New York and more.
Airlines flying nonstop from BOS to LIR
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
- JetBlue AirwaysNot in an alliance · bookable with 2 programsWho books it
Book BOS to LIR with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Aeromexico RewardsBooks Delta Air Lines
- Air France-KLM Flying BlueBooks Delta Air Lines
- China Eastern Eastern MilesBooks Delta Air Lines
- Delta SkyMilesBooks Delta Air Lines
- Garuda Indonesia GarudaMilesBooks Delta Air Lines
- JetBlue TrueBlueBooks JetBlue Airways
- Korean Air SKYPASSBooks Delta Air Lines
- SAS EuroBonusBooks Delta Air Lines
- Singapore Airlines KrisFlyerBooks JetBlue Airways
- Virgin Atlantic Flying ClubBooks Delta Air Lines
BOS to LIR with one stop
19 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Miami (MIA)American Airlines the whole way
- Via Fort Lauderdale (FLL)JetBlue Airways the whole way
- Via New York (JFK)American Airlines, JetBlue Airways and 1 more the whole way
- Via New York (EWR)United Airlines the whole way
- Via Philadelphia (PHL)American Airlines the whole way
- Via Baltimore (BWI)Southwest Airlines the whole way
- Via Dulles (IAD)United Airlines the whole way
- Via Charlotte (CLT)American Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Nashville (BNA)Southwest Airlines the whole way
- Via Toronto (YYZ)Air Canada and Porter Airlines the whole way
+1
- Via Montreal (YUL)Air Canada the whole way
- Via Ottawa (YOW)Porter Airlines the whole way
- Via Detroit (DTW)Delta Air Lines the whole way
- Via Chicago (ORD)American Airlines and United Airlines the whole way+1
BOS to LIR: common questions
Which airlines fly nonstop from BOS to LIR?
Delta Air Lines (SkyTeam) and JetBlue Airways fly nonstop from Boston (BOS) to Guanacaste (LIR).
How far is Boston from Guanacaste by plane?
Boston (BOS) and Guanacaste (LIR) are 2,364 miles (3,804 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book BOS to LIR award flights?
10 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air France-KLM Flying Blue, China Eastern Eastern Miles, Delta SkyMiles, Garuda Indonesia GarudaMiles, JetBlue TrueBlue, Korean Air SKYPASS, SAS EuroBonus and 2 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does BOS to LIR cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for BOS to LIR with taxes and fees.
Where can I connect between Boston and Guanacaste?
The most direct connections are through Miami (MIA), Fort Lauderdale (FLL), New York (JFK), New York (EWR) and Philadelphia (PHL). On 19 of them the same airline flies both flights, for example American Airlines through Miami.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.