NK866
NK866 (Spirit Airlines) is a multi-stop service on 5 routes, busiest Fort Lauderdale to Boston. Of 162 departures recorded from November 2024 to May 2025, 66.0% left on time, according to the US BTS.
- On-time departures66.0%of 162 flights
- Average delay36.9 min
- May 20256
- Cancelled5.6%
- Legs flown under this number5
Recorded departures by month
Short series — NK866 has only 7 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.
The most recent periods7 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | 31 | – |
| February | – | 28 | – |
| March | – | 30 | – |
| April | – | 30 | – |
| May | – | 6 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | 12 | – | – |
| December | 25 | – | – |
according to the US BTS · November 2024 → May 2025
On-time departures by month
Short series — NK866 has only 7 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods7 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | 66.7% | – |
| February | – | 80.8% | – |
| March | – | 75.9% | – |
| April | – | 53.6% | – |
| May | – | 0.0% | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | 100.0% | – | – |
| December | 45.8% | – | – |
according to the US BTS · November 2024 → May 2025
Average departure delay by month
Short series — NK866 has only 7 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · November 2024 → May 2025
Cancelled departures by month
Short series — NK866 has only 7 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods7 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 2 | – |
| March | – | 1 | – |
| April | – | 2 | – |
| May | – | 2 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | 0 | – | – |
| December | 1 | – | – |
according to the US BTS · November 2024 → May 2025
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 94.4% 153
- Cancelled 5.6% 9
Share of all recorded flights in the period, all legs. · Nov 7, 2024 → May 6, 2025
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| FLL BOS Fort Lauderdale Hollywood International Airport – Boston Logan International Airport | 1,994 | 12.9 min | 74.5% | 54 |
| EWR MIA Newark Liberty International Airport – Miami International Airport | 1,750 | 79.1 min | 53.3% | 49 |
| MIA EWR Miami International Airport – Newark Liberty International Airport | 1,750 | 35.0 min | 50.0% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 12 | 12 | 100.0% | 0 |
| December 2024 | 25 | 24 | 45.8% | 1 |
| January 2025 | 31 | 30 | 66.7% | 1 |
| February 2025 | 28 | 26 | 80.8% | 2 |
| March 2025 | 30 | 29 | 75.9% | 1 |
| April 2025 | 30 | 28 | 53.6% | 2 |
| May 2025 | 6 | 4 | 0.0% | 2 |