NK743
NK743 (Spirit Airlines) is a multi-stop service on 7 routes, busiest Fort Lauderdale to Boston. Of 273 departures recorded from October 2024 to May 2026, 54.5% left on time, according to the US BTS.
- On-time departures54.5%of 273 flights
- Average delay36.5 min
- May 20261▼ 75.0%vs May 2025
- Cancelled5.9%
- Legs flown under this number7
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods10 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 8 | 30 | ▲ 275.0% |
| February | – | 28 | – |
| March | 26 | 31 | ▲ 19.2% |
| April | 20 | 23 | ▲ 15.0% |
| May | 4 | 1 | ▼ 75.0% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 22 | – | – |
according to the US BTS · October 2024 → May 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 periods10 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 37.5% | 42.3% | ▲ 12.8% |
| February | – | 45.8% | – |
| March | 73.1% | 24.0% | ▼ 67.2% |
| April | 90.0% | 40.9% | ▼ 54.5% |
| May | 50.0% | 100.0% | ▲ 100.0% |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 52.4% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods10 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 4 | – |
| February | – | 4 | – |
| March | 0 | 6 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 1 | – | – |
according to the US BTS · October 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 94.1% 257
- Cancelled 5.9% 16
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 1, 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 BOS Fort Lauderdale Hollywood International Airport – Boston Logan International Airport | 1,994 | 61.6 min | 34.6% | 95 |
| ATL FLL Hartsfield Jackson Atlanta International Airport – Fort Lauderdale Hollywood International Airport | 936 | 31.8 min | 59.1% | 88 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 29 | 29 | 62.1% | 0 |
| December 2024 | 31 | 31 | 58.1% | 0 |
| January 2025 | 8 | 8 | 37.5% | 0 |
| March 2025 | 26 | 26 | 73.1% | 0 |
| April 2025 | 20 | 20 | 90.0% | 0 |
| May 2025 | 4 | 4 | 50.0% | 0 |
| December 2025 | 22 | 21 | 52.4% | 1 |
| January 2026 | 30 | 26 | 42.3% | 4 |
| February 2026 | 28 | 24 | 45.8% | 4 |
| March 2026 | 31 | 25 | 24.0% | 6 |
| April 2026 | 23 | 22 | 40.9% | 1 |
| May 2026 | 1 | 1 | 100.0% | 0 |