NK1645
NK1645 (Spirit Airlines) is a multi-stop service on 3 routes, busiest Fort Lauderdale to San Antonio. Of 138 departures recorded from January 2025 to April 2026, 78.9% left on time, according to the US BTS.
- On-time departures78.9%of 138 flights
- Average delay8.2 min
- April 202614
- Cancelled7.3%
- Legs flown under this number3
Recorded departures by month
Short series — NK1645 has only 9 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 periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 14 | 18 | ▲ 28.6% |
| February | 23 | 24 | ▲ 4.3% |
| March | 4 | 31 | ▲ 675.0% |
| April | – | 14 | – |
| May | – | – | – |
| June | – | – | – |
| July | 7 | – | – |
| August | 3 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2025 → April 2026
On-time departures by month
Short series — NK1645 has only 9 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 periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 83.3% | 83.3% | 0.0% |
| February | 78.3% | 79.0% | ▲ 0.9% |
| March | 75.0% | 66.7% | ▼ 11.1% |
| April | – | 91.7% | – |
| May | – | – | – |
| June | – | – | – |
| July | 100.0% | – | – |
| August | 66.7% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2025 → April 2026
Average departure delay by month
Short series — NK1645 has only 9 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 · January 2025 → April 2026
Cancelled departures by month
Short series — NK1645 has only 9 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | 5 | – |
| March | 0 | 1 | – |
| April | – | 2 | – |
| May | – | – | – |
| June | – | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2025 → April 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 92.8% 128
- Cancelled 7.2% 10
Share of all recorded flights in the period, all legs. · Jan 9, 2025 → Apr 14, 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 |
|---|---|---|---|---|
| FLL SAT Fort Lauderdale Hollywood International Airport – San Antonio International Airport | 1,840 | 8.3 min | 77.2% | 87 |
| EWR ATL Newark Liberty International Airport – Hartsfield Jackson Atlanta International Airport | 1,199 | 10.4 min | 79.5% | 41 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 14 | 12 | 83.3% | 2 |
| February 2025 | 23 | 23 | 78.3% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| July 2025 | 7 | 7 | 100.0% | 0 |
| August 2025 | 3 | 3 | 66.7% | 0 |
| January 2026 | 18 | 18 | 83.3% | 0 |
| February 2026 | 24 | 19 | 79.0% | 5 |
| March 2026 | 31 | 30 | 66.7% | 1 |
| April 2026 | 14 | 12 | 91.7% | 2 |