Costa Rica to United States · 2,364 miles (3,804 km)

Guanacaste (LIR) to Boston (BOS) flights

2 airlines fly nonstop from Guanacaste (LIR) to Boston (BOS): 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 LIR to BOS

  • Delta Air Lines logo
    Delta Air LinesSkyTeam · bookable with 8 programsWho books it
  • JetBlue Airways logo
    JetBlue AirwaysNot in an alliance · bookable with 2 programsWho books it

Book LIR to BOS with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

LIR to BOS 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
    American Airlines logo
    American Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
  • Via Fort Lauderdale (FLL)JetBlue Airways the whole way
    JetBlue Airways logo
    JetBlue Airways logo
    Delta Air Lines logo
    Allegiant Air logo
  • Via New York (JFK)JetBlue Airways, American Airlines and 1 more the whole way
    JetBlue Airways logo
    American Airlines logo
    Delta Air Lines logo
    American Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
  • Via New York (EWR)United Airlines the whole way
    United Airlines logo
    United Airlines logo
    Delta Air Lines logo
  • Via Philadelphia (PHL)American Airlines the whole way
    American Airlines logo
    American Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
  • Via Baltimore (BWI)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
    Delta Air Lines logo
  • Via Dulles (IAD)United Airlines the whole way
    United Airlines logo
    United Airlines logo
  • Via Charlotte (CLT)American Airlines the whole way
    American Airlines logo
    American Airlines logo
    Delta Air Lines logo
  • Via Atlanta (ATL)Delta Air Lines the whole way
    Delta Air Lines logo
    JetBlue Airways logo
    Delta Air Lines logo
    Frontier Airlines logo
  • Via Nashville (BNA)Southwest Airlines the whole way
    Southwest Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    Southwest Airlines logo
  • Via Toronto (YYZ)Air Canada and Porter Airlines the whole way
    Air Canada logo
    Air Transat logo
    WestJet logo
    +1
    Air Canada logo
    Porter Airlines logo
  • Via Montreal (YUL)Air Canada the whole way
    Air Canada logo
    Air Transat logo
    Air Canada logo
    Porter Airlines logo
  • Via Ottawa (YOW)Porter Airlines the whole way
    Porter Airlines logo
    Porter Airlines logo
  • Via Detroit (DTW)Delta Air Lines the whole way
    Delta Air Lines logo
    JetBlue Airways logo
    Delta Air Lines logo
  • Via Chicago (ORD)United Airlines and American Airlines the whole way
    United Airlines logo
    American Airlines logo
    American Airlines logo
    JetBlue Airways logo
    United Airlines logo
    +1
See all 19 in Routes

LIR to BOS: common questions

Which airlines fly nonstop from LIR to BOS?

Delta Air Lines (SkyTeam) and JetBlue Airways fly nonstop from Guanacaste (LIR) to Boston (BOS).

How far is Guanacaste from Boston by plane?

Guanacaste (LIR) and Boston (BOS) 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 LIR to BOS 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 LIR to BOS cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for LIR to BOS with taxes and fees.

Where can I connect between Guanacaste and Boston?

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.