NK737
NK737 (Spirit Airlines) is a multi-stop service on 2 routes, busiest Detroit to Miami. Of 40 departures recorded from March 2025 to December 2025, 80.0% left on time, according to the US BTS.
- On-time departures80.0%of 40 flights
- Average delay8.4 min
- December 20251
- Cancelled0.0%
- Legs flown under this number2
Recorded departures by month
Short series — NK737 has only 4 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 periods4 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 27 | – |
| April | – | 8 | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | – | 4 | – |
| December | – | 1 | – |
according to the US BTS · March 2025 → December 2025
On-time departures by month
Short series — NK737 has only 4 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 periods4 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 81.5% | – |
| April | – | 75.0% | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | – | 75.0% | – |
| December | – | 100.0% | – |
according to the US BTS · March 2025 → December 2025
Average departure delay by month
Short series — NK737 has only 4 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 · March 2025 → December 2025
Cancelled departures by month
Short series — NK737 has only 4 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods4 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | – |
| November | – | 0 | – |
| December | – | 0 | – |
according to the US BTS · March 2025 → December 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 100.0% 40
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Mar 5, 2025 → Dec 2, 2025
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW MIA Detroit Metropolitan Wayne County Airport – Miami International Airport | 1,847 | 8.9 min | 80.0% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| March 2025 | 27 | 27 | 81.5% | 0 |
| April 2025 | 8 | 8 | 75.0% | 0 |
| November 2025 | 4 | 4 | 75.0% | 0 |
| December 2025 | 1 | 1 | 100.0% | 0 |