Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
B6 561 · Boston (BOS) → San Juan (SJU)
Sold by JetBlue. Still flying: 51 of the last 56 days (Daily).
Arrives on time51%within 15 minutes, of 274 flights
Cancelled3.6%of scheduled flights
An hour or more late20%of flights that operated
When late, on average72 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves BOS
- 21:44
- Arrives SJU
- 02:17
- Flight time
- 4h 00m
- Days flown, last 8 weeks
- 51 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at BOS
All flights leaving Boston (BOS) at 9–10 pm, wherever they’re going: 58% left within 15 minutes and 4.8% were cancelled (2,400 flights in the year). Other JetBlue flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.