NK573
NK573 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Fort Lauderdale to Philadelphia. Of 181 departures recorded from January 2025 to April 2026, 61.5% left on time, according to the US BTS.
- On-time departures61.5%of 181 flights
- Average delay31.8 min
- April 202614▼ 39.1%vs April 2025
- Cancelled6.6%
- Legs flown under this number4
Recorded departures by month
Short series — NK573 has only 11 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 periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 14 | 24 | ▲ 71.4% |
| February | 6 | 28 | ▲ 366.7% |
| March | 27 | 31 | ▲ 14.8% |
| April | 23 | 14 | ▼ 39.1% |
| May | 5 | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 8 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Apr) | 70 | 97 | ▲ 38.6% |
according to the US BTS · January 2025 → April 2026
On-time departures by month
Short series — NK573 has only 11 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 85.7% | 47.6% | ▼ 44.4% |
| February | 83.3% | 48.0% | ▼ 42.4% |
| March | 92.6% | 18.5% | ▼ 80.0% |
| April | 100.0% | 33.3% | ▼ 66.7% |
| May | 80.0% | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 37.5% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Apr) | 90.4% | 36.9% | ▼ 59.2% |
according to the US BTS · January 2025 → April 2026
Average departure delay by month
Short series — NK573 has only 11 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 — NK573 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 3 | – |
| February | 0 | 3 | – |
| March | 0 | 4 | – |
| April | 0 | 2 | – |
| May | 0 | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Apr) | 0 | 12 |
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 93.4% 169
- Cancelled 6.6% 12
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 PHL Fort Lauderdale Hollywood International Airport – Philadelphia International Airport | 1,601 | 54.2 min | 36.5% | 97 |
| ORD MCO Chicago O'Hare International Airport – Orlando International Airport | 1,620 | 1.2 min | 94.6% | 55 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 14 | 14 | 85.7% | 0 |
| February 2025 | 6 | 6 | 83.3% | 0 |
| March 2025 | 27 | 27 | 92.6% | 0 |
| April 2025 | 23 | 23 | 100.0% | 0 |
| May 2025 | 5 | 5 | 80.0% | 0 |
| November 2025 | 8 | 8 | 37.5% | 0 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 24 | 21 | 47.6% | 3 |
| February 2026 | 28 | 25 | 48.0% | 3 |
| March 2026 | 31 | 27 | 18.5% | 4 |
| April 2026 | 14 | 12 | 33.3% | 2 |