starting at $154
starting at $148
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Boston to San Juan. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Boston to San Juan, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The Boston — San Juan route is served by multiple airlines, including JetBlue Airways and Southwest Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $148, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.
starting at $154
starting at $148
Boston — San Juan
10/07/2026
Departure
Direct flight
B6861
starting at $154
Boston — San Juan
09/27/2026
Departure
Direct flight
B6561
starting at $328
Boston — San Juan
11/25/2026
Departure
Direct flight
B6161
starting at $306
Boston — San Juan
11/26/2026
Departure
Direct flight
B6161
starting at $320
There are most likely no direct flights on the Boston — San Juan route
Boston Logan International (BOS) serves as the region’s primary international gateway and a full-service hub for major carriers, while smaller general aviation fields sit on the city’s periphery. Logan typically hosts a mix of legacy airlines and several low-cost carriers, so fares can range from premium on transatlantic routes to competitively priced domestic options. The airport lies roughly 3–5 miles from downtown Boston; taxis and rideshares usually take 15–30 minutes depending on traffic, shuttle services and the MBTA Silver Line bus provide 20–35 minute links (fares often under a few dollars), and the Blue Line plus free shuttle connects to terminals. Pros: central location and frequent flights; cons: can be busy with variable traffic delays and parking costs.
The cheapest one-way flight from Boston to San Juan departs on 10/07/2026, is operated by Southwest Airlines and costs $148
The cheapest roundtrip flight from Boston to San Juan departs on 09/10/2026, is operated by Frontier Airlines and costs $226
Fastest flight from Boston to San Juan takes
There are direct flights on this route 3 days a week: Su, We, and Th
The distance between Boston and San Juan is 2697km (1672 miles). There are 30 direct flights from Boston to San Juan. The time difference between Boston and San Juan is 1h. Flights from Boston begin at 6:00 AM. The latest flight from Boston departs at 7:50 PM
Luis Muñoz Marín International Airport (SJU) is Puerto Rico’s primary international gateway and a full-service hub for both legacy and low-cost carriers, typically handling most transatlantic, mainland U.S., and regional flights. It sits about 8 miles (13 km) east of Old San Juan, with taxi rides to the city center usually taking 15–25 minutes and costing roughly in the mid-single to low double digits; public buses and airport shuttles offer cheaper alternatives but can be slower. SJU tends to be competitively priced compared with smaller regional airports, especially on nonstop routes. Pros: broad route network and multiple ground-transport options; cons: periods of heavy traffic and occasional queueing at peak times.
The cheapest flight ticket from Boston to San Juan according to data for the last 48 hours costs $148
Often the best time to buy tickets from Boston to San Juan is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Boston to San Juan can be found flying in these months: October, September, December.
The fastest flights from Boston to San Juan start from 4 hours 5 minutes in the air.
The following airlines operate direct flights on the route Boston — San Juan: JetBlue Airways
In different months, ticket prices from Boston to San Juan vary: minimum — $148 (October 2026), maximum — $297 (December 2026). Typically, the flight costs $201–$455.
The Boston — San Juan route shows a classic seasonal pattern: prices rise, peak, then fall again. Knowing this, you can pick a more affordable time to fly.
Prices rise from October 2026 to December 2026 (+100%), then decline from September 2026 to October 2026 (7%). The cheapest tickets are in September 2026–October 2026 (averaging $153), while the priciest are in October 2026–December 2026 ($222).
For savings, plan your flight for September 2026–October 2026 — you could save up to 31%. Try to avoid October 2026–December 2026 when possible: prices are at their highest then.
Price spread on this route is 33.6%. Costs depend heavily on the season, so flexibility in choosing your departure month is especially valuable here.
We couldn't find any special offers for flights from Boston to San Juan