Flights San Juan → Boston
SJU → BOS
How long is the flight from San Juan to Boston?
The flight from San Juan (SJU) to Boston (BOS) takes 3h 52m on average. That is the median time recorded across 4 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route from San Juan to Boston operates with an average on-time performance of 76%, experiencing a mean delay of 14.1 minutes per flight. Over the course of a year, this route sees approximately 657 flights using Airbus A320 aircraft, serving one of the world's busiest airports in terms of annual passenger traffic, Logan International Airport in Boston, which handles nearly 36 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The San Juan (SJU) → Boston (BOS) route is operated by JetBlue Airways. Across 1245 flights monitored in recent months, 76% arrived on time (within 15 min of schedule), with an average delay of 15 minutes. The cancellation rate is 2.49%. FlightGuard's average computed risk is 27.1/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Boston the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from San Juan the average ATFM delay is 2.0 minutes.
Heading to Boston: what to expect in this direction
Flying from San Juan (SJU) to Boston (BOS) heads north for about 2,702 km, a flight time of roughly 3h 52m.
Departures from San Juan on this leg cluster in the morning window: about 40% of SJU-BOS flights take off then.
Air-traffic congestion: departing San Juan the average ATFM delay is 2.0 min (atfm); arriving into Boston it is 5.5 min (atfm).
Across 1,245 tracked SJU-BOS flights, 76% left on time with an average delay of 15 min and a 2.5% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| JetBlue Airways (B6) | 79% | 7 min | 0.1% |
Airlines operating SJU-BOS
Airports
Frequently asked questions about SJU-BOS
The flight from San Juan (SJU) to Boston (BOS) takes 3h 52m on average. That is the median time recorded across 4 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the San Juan (SJU) -> Boston (BOS) route, on-time performance is 76% with an average delay of 15 minutes, based on 1245 tracked flights.
The cancellation rate on San Juan-Boston is 2.49% across 1245 monitored flights.
The route is operated by 1 airline: JetBlue Airways.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Boston, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
