WN1276
WN1276 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Nashville to Houston. Of 835 departures recorded from October 2024 to July 2026, 79.3% left on time, according to the US BTS.
- On-time departures79.3%of 835 flights
- Average delay11.1 min
- July 202685▲ 183.3%vs July 2025
- Cancelled0.6%
- Legs flown under this number35
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 40 | 31 | ▼ 22.5% |
| February | 43 | 28 | ▼ 34.9% |
| March | 41 | 31 | ▼ 24.4% |
| April | 32 | 30 | ▼ 6.3% |
| May | 31 | 30 | ▼ 3.2% |
| June | 30 | 75 | ▲ 150.0% |
| July | 30 | 85 | ▲ 183.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 247 | 310 | ▲ 25.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 82.1% | 96.8% | ▲ 17.9% |
| February | 79.1% | 89.3% | ▲ 12.9% |
| March | 75.6% | 90.0% | ▲ 19.0% |
| April | 65.6% | 86.2% | ▲ 31.4% |
| May | 67.7% | 79.3% | ▲ 17.1% |
| June | 90.0% | 76.0% | ▼ 15.6% |
| July | 90.0% | 75.0% | ▼ 16.7% |
| August | 87.1% | – | – |
| September | 90.0% | – | – |
| October | 51.6% | – | in progress |
| November | 70.0% | – | – |
| December | 61.3% | – | – |
| Year-to-date average (Jan–Jul) | 78.6% | 84.7% | ▲ 7.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
according to the US BTS · October 2024 → July 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 99.4% 830
- Cancelled 0.6% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 47 | 47 | 87.2% | 0 |
| December 2024 | 58 | 58 | 75.9% | 0 |
| January 2025 | 40 | 39 | 82.1% | 1 |
| February 2025 | 43 | 43 | 79.1% | 0 |
| March 2025 | 41 | 41 | 75.6% | 0 |
| April 2025 | 32 | 32 | 65.6% | 0 |
| May 2025 | 31 | 31 | 67.7% | 0 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 30 | 30 | 90.0% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 51.6% | 0 |
| November 2025 | 30 | 30 | 70.0% | 0 |
| December 2025 | 31 | 31 | 61.3% | 0 |
| January 2026 | 31 | 31 | 96.8% | 0 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 30 | 90.0% | 1 |
| April 2026 | 30 | 29 | 86.2% | 1 |
| May 2026 | 30 | 29 | 79.3% | 1 |
| June 2026 | 75 | 75 | 76.0% | 0 |
| July 2026 | 85 | 84 | 75.0% | 1 |