The cheapest times to fly from BOS to SJU are
- January 8th to March 4th (except the week of February 12th)
- August 13th to December 16th (except the week of November 19th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BOS to SJU is late October. Prices can be as high as $766 for Sunday flights during late December, or as low as $271 for Tuesday flights around late October.
When to Fly to San Juan
Flying from Boston, MA (BOS) to San Juan, PR (SJU) will usually cost between $281 to $599 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October with an average ticket price of $276. Due to high demand the most expensive time to fly is late December, with an average price of $661. Planning your trip to low-cost times can easily save you $385 on economy flights and even more on first-class flights. Generally, any price below $356 can be considered a good price for a round-trip BOS to SJU flight.
See below for a graph of average weekly prices for the BOS to SJU route. All prices are for round-trip tickets in USD.
Compared to other flights, the BOS to SJU flight is much cheaper than the average and costs much less than the average flight leaving from Boston. The average price per mile (for a direct flight) is $0.13, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $103 (23%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $332. Return trip prices are from the SJU to BOS flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from BOS to SJU can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 4 hour 0 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from BOS to SJU? We’ve got answers.
Which airlines fly this route?
You can find 10 major airlines flying this route most often: American, Delta, Emirates, Frontier, JetBlue, Qatar Airways, Southwest, Spirit, Sun Country Airlines, United, and potentially more during busy seasons.
How far away is it from Luis Munoz Marin International Airport to Logan International Airport?
The distance between the two airports is roughly 1679 miles or 2702 kilometers.
How long does it take to fly from BOS to SJU?
The real-world flight time for a nonstop BOS to SJU flight is about 4 hour 0 minutes.
How many flights go between Boston, MA and San Juan, PR?
It depends on the day of the week and the date, but a typical day might have around 78 available flights from BOS to SJU.
Airport Location Info
|Origination airport name||Logan International Airport|
|Country||the United States|
|Destination airport name||Luis Munoz Marin International Airport|
|City||San Juan, PR|
|Country||the United States|
Late and Early Flight Data
Flights from BOS to SJU tend to depart much later than the average flight. According to our recently updated data, 42% of flights departed 5 or more minutes late, and 7% of flights left 5 or more minutes early. On average you can expect to leave SJU heading for BOS about 15 minutes late. This does significantly impact arrival time, as the average landing time in San Juan, PR is about 8 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- JetBlue: 15 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.