Cheap Flights from San Juan to Boston — $42

The San Juan — Boston route is served by a wide range of airlines: 5 in total, including Spirit Airlines, Frontier Airlines, JetBlue Airways, American Airlines, and Asian Air. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $42. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.

Luis Muñoz Marín International Airport (SJU) is Puerto Rico’s primary international gateway and typically serves most long‑haul, regional and domestic flights; major carriers and several low‑cost airlines operate here. The airport sits about 8 miles (roughly 20–30 minutes) east of Old San Juan, with taxis, app rides and shared shuttles commonly used—expect fares to vary by service and time of day. Public buses connect to the metro area though can be slower. Strengths include a wide range of dining, car rental and transfer options and frequent flight choices; downsides can be congestion during peak periods and longer lines for security or baggage claim. Overall it’s the convenient hub for most visitors to San Juan.

Boston Logan International Airport (BOS) serves as the region’s primary international and domestic gateway, handling both legacy carriers and many low-cost airlines; it’s typically regarded as a full-service hub rather than a budget-only option. The airport sits about 3–5 miles northeast of downtown Boston (depending on terminal), with travel times usually 15–30 minutes by car outside peak traffic. Public transit options include the MBTA Silver Line and Blue Line connections (roughly 20–35 minutes; fares are modest), plus taxis and rideshares that can vary with surge pricing. Pros: extensive flight choices and good public-transit links. Cons: can be busy at peak times and security/parking can add time and cost.

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from San Juan to Boston