NK524
NK524 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Boston to Baltimore. Of 174 departures recorded from November 2024 to December 2025, 90.7% left on time, according to the US BTS.
- On-time departures90.7%of 174 flights
- Average delay4.1 min
- December 20252▼ 92.9%vs December 2024
- Cancelled1.2%
- Legs flown under this number4
Recorded departures by month
Short series — NK524 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 | – | 31 | – |
| February | – | 28 | – |
| March | – | 4 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | 23 | – |
| August | – | 12 | – |
| September | – | – | – |
| October | – | – | – |
| November | 24 | 22 | ▼ 8.3% |
| December | 28 | 2 | ▼ 92.9% |
according to the US BTS · November 2024 → December 2025
On-time departures by month
Short series — NK524 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 | – | 93.1% | – |
| February | – | 92.9% | – |
| March | – | 75.0% | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | 87.0% | – |
| August | – | 100.0% | – |
| September | – | – | – |
| October | – | – | – |
| November | 100.0% | 77.3% | ▼ 22.7% |
| December | 89.3% | 100.0% | ▲ 12.0% |
according to the US BTS · November 2024 → December 2025
Average departure delay by month
Short series — NK524 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 · November 2024 → December 2025
Cancelled departures by month
Short series — NK524 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 | – | 2 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | 0 | – |
| August | – | 0 | – |
| September | – | – | – |
| October | – | – | – |
| November | 0 | 0 | – |
| December | 0 | 0 | – |
according to the US BTS · November 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 98.9% 172
- Cancelled 1.1% 2
Share of all recorded flights in the period, all legs. · Nov 7, 2024 → Dec 2, 2025
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS BWI Boston Logan International Airport – Baltimore/Washington International Thurgood Marshall Airport | 594 | 0.4 min | 93.2% | 60 |
| LAS EWR Harry Reid International Airport – Newark Liberty International Airport | 3,576 | -2.0 min | 92.6% | 55 |
| IAH DTW George Bush Intercontinental Airport – Detroit Metropolitan Wayne County Airport | 1,731 | 14.0 min | 91.4% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 24 | 24 | 100.0% | 0 |
| December 2024 | 28 | 28 | 89.3% | 0 |
| January 2025 | 31 | 29 | 93.1% | 2 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| July 2025 | 23 | 23 | 87.0% | 0 |
| August 2025 | 12 | 12 | 100.0% | 0 |
| November 2025 | 22 | 22 | 77.3% | 0 |
| December 2025 | 2 | 2 | 100.0% | 0 |