NK1231
NK1231 (Spirit Airlines) flies Boston to Fort Lauderdale. Of 35 departures recorded from July 2025 to August 2025, 42.9% left on time, according to the US BTS.
Recorded departures by month
Short series — NK1231 has only 2 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods2 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | 23 | – |
| August | – | 12 | – |
| September | – | – | – |
| October | – | – | – |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · July 2025 → August 2025
On-time departures by month
Short series — NK1231 has only 2 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 periods2 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | 43.5% | – |
| August | – | 41.7% | – |
| September | – | – | – |
| October | – | – | – |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · July 2025 → August 2025
Average departure delay by month
Short series — NK1231 has only 2 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · July 2025 → August 2025
Cancelled departures by month
Short series — NK1231 has only 2 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods2 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | 0 | – |
| August | – | 0 | – |
| September | – | – | – |
| October | – | – | – |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · July 2025 → August 2025
This is a historical record of departures already flown, not a forecast for your flight.
Cancellation share
- Not cancelled 100.0% 35
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Jul 9, 2025 → Aug 12, 2025
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS FLL Boston Logan International Airport – Fort Lauderdale Hollywood International Airport | 1,994 | 55.6 min | 42.9% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| July 2025 | 23 | 23 | 43.5% | 0 |
| August 2025 | 12 | 12 | 41.7% | 0 |