NK404
NK404 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Fort Lauderdale to Chicago. Of 133 departures recorded from October 2024 to December 2025, 72.7% left on time, according to the US BTS.
- On-time departures72.7%of 133 flights
- Average delay14.6 min
- December 20253
- Cancelled0.8%
- Legs flown under this number4
Recorded departures by month
Short series — NK404 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 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 27 | – |
| April | – | 30 | – |
| May | – | 6 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | 19 | – |
| September | – | 3 | – |
| October | 20 | – | – |
| November | 6 | 19 | ▲ 216.7% |
| December | – | 3 | – |
according to the US BTS · October 2024 → December 2025
On-time departures by month
Short series — NK404 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 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 57.7% | – |
| April | – | 73.3% | – |
| May | – | 50.0% | – |
| June | – | – | – |
| July | – | – | – |
| August | – | 42.1% | – |
| September | – | 66.7% | – |
| October | 90.0% | – | – |
| November | 100.0% | 100.0% | 0.0% |
| December | – | 100.0% | – |
according to the US BTS · October 2024 → December 2025
Average departure delay by month
Short series — NK404 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 · October 2024 → December 2025
Cancelled departures by month
Short series — NK404 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 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | 1 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | – | – |
| July | – | – | – |
| August | – | 0 | – |
| September | – | 0 | – |
| October | 0 | – | – |
| November | 0 | 0 | – |
| December | – | 0 | – |
according to the US BTS · October 2024 → 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 99.2% 132
- Cancelled 0.8% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Dec 3, 2025
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| FLL ORD Fort Lauderdale Hollywood International Airport – Chicago O'Hare International Airport | 1,905 | 20.9 min | 64.5% | 63 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 6 | 6 | 100.0% | 0 |
| March 2025 | 27 | 26 | 57.7% | 1 |
| April 2025 | 30 | 30 | 73.3% | 0 |
| May 2025 | 6 | 6 | 50.0% | 0 |
| August 2025 | 19 | 19 | 42.1% | 0 |
| September 2025 | 3 | 3 | 66.7% | 0 |
| November 2025 | 19 | 19 | 100.0% | 0 |
| December 2025 | 3 | 3 | 100.0% | 0 |