B6391
B6391 (JetBlue Airways) is a multi-stop service on 2 routes, busiest Boston to Tampa. Of 484 departures recorded from October 2024 to July 2026, 60.7% left on time, according to the US BTS.
- On-time departures60.7%of 484 flights
- Average delay26.6 min
- July 202630▼ 3.2%vs July 2025
- Cancelled1.7%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 12 | 28 | ▲ 133.3% |
| March | – | 31 | – |
| April | – | 30 | – |
| May | – | 31 | – |
| June | 15 | 28 | ▲ 86.7% |
| July | 31 | 30 | ▼ 3.2% |
| August | 31 | – | – |
| September | 6 | – | – |
| October | 17 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 74.2% | 72.4% | ▼ 2.4% |
| February | 58.3% | 50.0% | ▼ 14.3% |
| March | – | 61.3% | – |
| April | – | 80.0% | – |
| May | – | 77.4% | – |
| June | 33.3% | 75.0% | ▲ 125.0% |
| July | 44.8% | 34.5% | ▼ 23.1% |
| August | 58.1% | – | – |
| September | 33.3% | – | – |
| October | 29.4% | – | in progress |
| November | 51.9% | – | – |
| December | 48.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 2 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 1 | ▼ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
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 98.3% 476
- Cancelled 1.7% 8
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS TPA Boston Logan International Airport – Tampa International Airport | 1,908 | 29.4 min | 57.8% | 378 |
| BUF JFK Buffalo Niagara International Airport – John F. Kennedy International Airport | 484 | 17.1 min | 70.8% | 106 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 88.2% | 0 |
| November 2024 | 28 | 28 | 82.1% | 0 |
| December 2024 | 30 | 30 | 60.0% | 0 |
| January 2025 | 31 | 31 | 74.2% | 0 |
| February 2025 | 12 | 12 | 58.3% | 0 |
| June 2025 | 15 | 15 | 33.3% | 0 |
| July 2025 | 31 | 29 | 44.8% | 2 |
| August 2025 | 31 | 31 | 58.1% | 0 |
| September 2025 | 6 | 6 | 33.3% | 0 |
| October 2025 | 17 | 17 | 29.4% | 0 |
| November 2025 | 28 | 27 | 51.9% | 1 |
| December 2025 | 29 | 29 | 48.3% | 0 |
| January 2026 | 31 | 29 | 72.4% | 2 |
| February 2026 | 28 | 26 | 50.0% | 2 |
| March 2026 | 31 | 31 | 61.3% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 31 | 31 | 77.4% | 0 |
| June 2026 | 28 | 28 | 75.0% | 0 |
| July 2026 | 30 | 29 | 34.5% | 1 |