NK1633
NK1633 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Kansas City to Las Vegas. Of 155 departures recorded from January 2025 to April 2026, 87.2% left on time, according to the US BTS.
- On-time departures87.2%of 155 flights
- Average delay4.2 min
- April 202613
- Cancelled4.5%
- Legs flown under this number4
Recorded departures by month
Short series — NK1633 has only 8 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 periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 24 | ▲ 4.3% |
| February | 11 | 28 | ▲ 154.5% |
| March | – | 31 | – |
| April | – | 13 | – |
| May | – | – | – |
| June | – | – | – |
| July | 17 | – | – |
| August | 8 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2025 → April 2026
On-time departures by month
Short series — NK1633 has only 8 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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 59.1% | 91.7% | ▲ 55.1% |
| February | 90.9% | 100.0% | ▲ 10.0% |
| March | – | 79.3% | – |
| April | – | 100.0% | – |
| May | – | – | – |
| June | – | – | – |
| July | 94.1% | – | – |
| August | 100.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2025 → April 2026
Average departure delay by month
Short series — NK1633 has only 8 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 — NK1633 has only 8 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | – | 2 | – |
| April | – | 3 | – |
| May | – | – | – |
| June | – | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 95.5% 148
- Cancelled 4.5% 7
Share of all recorded flights in the period, all legs. · Jan 9, 2025 → Apr 13, 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 |
|---|---|---|---|---|
| MCI LAS Kansas City International Airport – Harry Reid International Airport | 1,829 | 2.3 min | 91.1% | 96 |
| IAH BWI George Bush Intercontinental Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,986 | 10.9 min | 69.7% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 23 | 22 | 59.1% | 1 |
| February 2025 | 11 | 11 | 90.9% | 0 |
| July 2025 | 17 | 17 | 94.1% | 0 |
| August 2025 | 8 | 8 | 100.0% | 0 |
| January 2026 | 24 | 24 | 91.7% | 0 |
| February 2026 | 28 | 27 | 100.0% | 1 |
| March 2026 | 31 | 29 | 79.3% | 2 |
| April 2026 | 13 | 10 | 100.0% | 3 |