NK1635
NK1635 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Reno to Las Vegas. Of 185 departures recorded from January 2025 to April 2026, 81.7% left on time, according to the US BTS.
- On-time departures81.7%of 185 flights
- Average delay8.3 min
- April 202613▲ 1,200.0%vs April 2025
- Cancelled2.7%
- Legs flown under this number4
Recorded departures by month
Short series — NK1635 has only 10 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 periods10 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 24 | ▲ 4.3% |
| February | 26 | 28 | ▲ 7.7% |
| March | 5 | 31 | ▲ 520.0% |
| April | 1 | 13 | ▲ 1,200.0% |
| May | – | – | – |
| June | – | – | – |
| July | 23 | – | – |
| August | 11 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Apr) | 55 | 96 | ▲ 74.5% |
according to the US BTS · January 2025 → April 2026
On-time departures by month
Short series — NK1635 has only 10 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 periods10 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 85.7% | 100.0% | ▲ 16.7% |
| February | 73.1% | 89.3% | ▲ 22.2% |
| March | 100.0% | 90.0% | ▼ 10.0% |
| April | 100.0% | 92.3% | ▼ 7.7% |
| May | – | – | – |
| June | – | – | – |
| July | 52.2% | – | – |
| August | 50.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Apr) | 89.7% | 92.9% | ▲ 3.6% |
according to the US BTS · January 2025 → April 2026
Average departure delay by month
Short series — NK1635 has only 10 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 — NK1635 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods10 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | – | – | – |
| June | – | – | – |
| July | 0 | – | – |
| August | 1 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Apr) | 2 | 2 | 0.0% |
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 97.3% 180
- Cancelled 2.7% 5
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 1.6 min | 92.6% | 96 |
| IAH MIA George Bush Intercontinental Airport – Miami International Airport | 1,549 | 4.9 min | 80.0% | 52 |
| ORD SJU Chicago O'Hare International Airport – Luis Munoz Marin International Airport | 3,338 | 34.4 min | 51.5% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 23 | 21 | 85.7% | 2 |
| February 2025 | 26 | 26 | 73.1% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| April 2025 | 1 | 1 | 100.0% | 0 |
| July 2025 | 23 | 23 | 52.2% | 0 |
| August 2025 | 11 | 10 | 50.0% | 1 |
| January 2026 | 24 | 23 | 100.0% | 1 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 30 | 90.0% | 1 |
| April 2026 | 13 | 13 | 92.3% | 0 |