United States to Puerto Rico · 1,680 miles (2,703 km)

Boston (BOS) to San Juan (SJU) flights

3 airlines fly nonstop from Boston (BOS) to San Juan (SJU): Delta Air Lines, Frontier Airlines and JetBlue Airways. The two airports are 1,680 miles (2,703 km) apart. Delta Air Lines is in SkyTeam. There are also 34 ways to fly it with one stop, through Saint Thomas, New York and New York and more.

Airlines flying nonstop from BOS to SJU

Book BOS to SJU with points

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

BOS to SJU with one stop

34 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

  • Via Saint Thomas (STT)JetBlue Airways the whole way
    JetBlue Airways logo
    Delta Air Lines logo
    Cape Air logo
    JetBlue Airways logo
    Sun Country Airlines logo
  • Via New York (JFK)JetBlue Airways and Delta Air Lines the whole way
    American Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    JetBlue Airways logo
    Delta Air Lines logo
  • Via New York (LGA)American Airlines and Delta Air Lines, then Frontier Airlines
    American Airlines logo
    Delta Air Lines logo
    Frontier Airlines logo
  • Via Punta Cana (PUJ)JetBlue Airways the whole way
    American Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    JetBlue Airways logo
    Frontier Airlines logo
    Arajet logo
  • Via New York (EWR)United Airlines the whole way
    United Airlines logo
    Delta Air Lines logo
    JetBlue Airways logo
    United Airlines logo
    Frontier Airlines logo
  • Via Philadelphia (PHL)American Airlines and JetBlue Airways the whole way
    American Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    American Airlines logo
    Frontier Airlines logo
    JetBlue Airways logo
  • Via Norfolk (ORF)JetBlue Airways the whole way
    Delta Air Lines logo
    JetBlue Airways logo
    JetBlue Airways logo
  • Via Santiago (STI)JetBlue Airways the whole way
    JetBlue Airways logo
    JetBlue Airways logo
  • Via Santo Domingo (SDQ)JetBlue Airways and Arajet the whole way
    JetBlue Airways logo
    Arajet logo
    JetBlue Airways logo
    Frontier Airlines logo
    Arajet logo
  • Via Anguilla (AXA), then Tradewind Aviation
    TJ
  • Via Sint Maarten (SXM)JetBlue Airways, then Contour Aviation
    JetBlue Airways logo
    LF
  • Via Baltimore (BWI)Southwest Airlines the whole way
    Southwest Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
    Frontier Airlines logo
    JetBlue Airways logo
  • Via Washington (DCA)JetBlue Airways the whole way
    American Airlines logo
    JetBlue Airways logo
    Delta Air Lines logo
    JetBlue Airways logo
  • Via Richmond (RIC)JetBlue Airways the whole way
    JetBlue Airways logo
    Delta Air Lines logo
    JetBlue Airways logo
  • Via Dulles (IAD)United Airlines the whole way
    United Airlines logo
    United Airlines logo
    Frontier Airlines logo
See all 34 in Routes

BOS to SJU: common questions

Which airlines fly nonstop from BOS to SJU?

Delta Air Lines (SkyTeam), Frontier Airlines and JetBlue Airways fly nonstop from Boston (BOS) to San Juan (SJU).

How far is Boston from San Juan by plane?

Boston (BOS) and San Juan (SJU) are 1,680 miles (2,703 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 SJU 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 SJU 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 SJU with taxes and fees.

Where can I connect between Boston and San Juan?

The most direct connections are through Saint Thomas (STT), New York (JFK), New York (LGA), Punta Cana (PUJ) and New York (EWR). On 28 of them the same airline flies both flights, for example JetBlue Airways through Saint Thomas.

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.