B6561
B6561 (JetBlue Airways) is a multi-stop service on 2 routes, busiest Boston to San Juan. Of 546 departures recorded from October 2024 to July 2026, 61.5% left on time, according to the US BTS.
- On-time departures61.5%of 546 flights
- Average delay25.8 min
- July 202631▲ 0.0%vs July 2025
- Cancelled2.4%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 29 | ▲ 16.0% |
| February | 28 | 26 | ▼ 7.1% |
| March | 30 | 30 | 0.0% |
| April | 30 | 28 | ▼ 6.7% |
| May | 31 | 22 | ▼ 29.0% |
| June | 30 | 20 | ▼ 33.3% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 2 | – | – |
| October | 5 | – | in progress |
| November | 21 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 205 | 186 | ▼ 9.3% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 88.0% | 53.9% | ▼ 38.8% |
| February | 92.6% | 50.0% | ▼ 46.0% |
| March | 73.3% | 70.0% | ▼ 4.5% |
| April | 83.3% | 50.0% | ▼ 40.0% |
| May | 58.1% | 81.8% | ▲ 40.9% |
| June | 63.3% | 40.0% | ▼ 36.8% |
| July | 37.9% | 26.9% | ▼ 29.0% |
| August | 48.4% | – | – |
| September | 50.0% | – | – |
| October | 40.0% | – | in progress |
| November | 57.1% | – | – |
| December | 51.7% | – | – |
| Year-to-date average (Jan–Jul) | 70.9% | 53.2% | ▼ 25.0% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 3 | – |
| February | 1 | 2 | ▲ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 5 | ▲ 150.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 10 | ▲ 233.3% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 97.6% 533
- Cancelled 2.4% 13
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS SJU Boston Logan International Airport – Luis Munoz Marin International Airport | 2,702 | 26.5 min | 60.6% | 531 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 29 | 29 | 72.4% | 0 |
| December 2024 | 18 | 18 | 50.0% | 0 |
| January 2025 | 25 | 25 | 88.0% | 0 |
| February 2025 | 28 | 27 | 92.6% | 1 |
| March 2025 | 30 | 30 | 73.3% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 31 | 31 | 58.1% | 0 |
| June 2025 | 30 | 30 | 63.3% | 0 |
| July 2025 | 31 | 29 | 37.9% | 2 |
| August 2025 | 31 | 31 | 48.4% | 0 |
| September 2025 | 2 | 2 | 50.0% | 0 |
| October 2025 | 5 | 5 | 40.0% | 0 |
| November 2025 | 21 | 21 | 57.1% | 0 |
| December 2025 | 29 | 29 | 51.7% | 0 |
| January 2026 | 29 | 26 | 53.9% | 3 |
| February 2026 | 26 | 24 | 50.0% | 2 |
| March 2026 | 30 | 30 | 70.0% | 0 |
| April 2026 | 28 | 28 | 50.0% | 0 |
| May 2026 | 22 | 22 | 81.8% | 0 |
| June 2026 | 20 | 20 | 40.0% | 0 |
| July 2026 | 31 | 26 | 26.9% | 5 |