NK1156
NK1156 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Houston to Chicago. Of 234 departures recorded from October 2024 to April 2026, 69.9% left on time, according to the US BTS.
- On-time departures69.9%of 234 flights
- Average delay20.8 min
- April 202613
- Cancelled3.4%
- Legs flown under this number4
Recorded departures by month
Short series — NK1156 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 periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 8 | 31 | ▲ 287.5% |
| February | – | 26 | – |
| March | – | 31 | – |
| April | – | 13 | – |
| May | – | – | – |
| June | – | – | – |
| July | 13 | – | – |
| August | 7 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 24 | – | – |
according to the US BTS · October 2024 → April 2026
On-time departures by month
Short series — NK1156 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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 80.7% | ▼ 19.3% |
| February | – | 50.0% | – |
| March | – | 60.0% | – |
| April | – | 45.5% | – |
| May | – | – | – |
| June | – | – | – |
| July | 61.5% | – | – |
| August | 42.9% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 45.5% | – | – |
according to the US BTS · October 2024 → April 2026
Average departure delay by month
Short series — NK1156 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 · October 2024 → April 2026
Cancelled departures by month
Short series — NK1156 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 periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 2 | – |
| March | – | 1 | – |
| April | – | 2 | – |
| May | – | – | – |
| June | – | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 2 | – | – |
according to the US BTS · October 2024 → 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 96.6% 226
- Cancelled 3.4% 8
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → 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 |
|---|---|---|---|---|
| IAH ORD George Bush Intercontinental Airport – Chicago O'Hare International Airport | 1,491 | 20.8 min | 62.9% | 94 |
| ATL DTW Hartsfield Jackson Atlanta International Airport – Detroit Metropolitan Wayne County Airport | 958 | 15.2 min | 87.5% | 89 |
| CHS EWR Charleston International Airport – Newark Liberty International Airport | 1,011 | 32.6 min | 48.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 86.7% | 0 |
| December 2024 | 31 | 30 | 76.7% | 1 |
| January 2025 | 8 | 8 | 100.0% | 0 |
| July 2025 | 13 | 13 | 61.5% | 0 |
| August 2025 | 7 | 7 | 42.9% | 0 |
| December 2025 | 24 | 22 | 45.5% | 2 |
| January 2026 | 31 | 31 | 80.7% | 0 |
| February 2026 | 26 | 24 | 50.0% | 2 |
| March 2026 | 31 | 30 | 60.0% | 1 |
| April 2026 | 13 | 11 | 45.5% | 2 |