B6661
B6661 (JetBlue Airways) is a multi-stop service on 2 routes, busiest Boston to San Juan. Of 82 departures recorded from December 2024 to May 2026, 81.0% left on time, according to the US BTS.
- On-time departures81.0%of 82 flights
- Average delay15.9 min
- May 202611
- Cancelled3.7%
- Legs flown under this number2
Recorded departures by month
Short series — B6661 has only 6 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods5 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | – | – |
| February | – | 17 | – |
| March | – | 30 | – |
| April | – | 15 | – |
| May | – | 11 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · December 2024 → May 2026
On-time departures by month
Short series — B6661 has only 6 months so far. Enough to show the level now, not enough to read a trend.
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 periods5 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | – | – |
| February | – | 71.4% | – |
| March | – | 83.3% | – |
| April | – | 73.3% | – |
| May | – | 81.8% | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · December 2024 → May 2026
Average departure delay by month
Short series — B6661 has only 6 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · December 2024 → May 2026
Cancelled departures by month
Short series — B6661 has only 6 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods5 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | – | 3 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · December 2024 → May 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 96.3% 79
- Cancelled 3.7% 3
Share of all recorded flights in the period, all legs. · Dec 27, 2024 → May 18, 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 | 19.0 min | 78.6% | 73 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 5 | 5 | 100.0% | 0 |
| January 2025 | 4 | 4 | 100.0% | 0 |
| February 2026 | 17 | 14 | 71.4% | 3 |
| March 2026 | 30 | 30 | 83.3% | 0 |
| April 2026 | 15 | 15 | 73.3% | 0 |
| May 2026 | 11 | 11 | 81.8% | 0 |