WN1511
WN1511 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Nashville to Cleveland. Of 663 departures recorded from October 2024 to July 2026, 71.3% left on time, according to the US BTS.
- On-time departures71.3%of 663 flights
- Average delay15.6 min
- July 202613▼ 56.7%vs July 2025
- Cancelled0.8%
- Legs flown under this number30
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 | 28 | 33 | ▲ 17.9% |
| February | 34 | 46 | ▲ 35.3% |
| March | 47 | 37 | ▼ 21.3% |
| April | 34 | 31 | ▼ 8.8% |
| May | 31 | 31 | 0.0% |
| June | 30 | 15 | ▼ 50.0% |
| July | 30 | 13 | ▼ 56.7% |
| August | 43 | – | – |
| September | 43 | – | – |
| October | 26 | – | in progress |
| November | 25 | – | – |
| December | 20 | – | – |
| Year to date (Jan–Jul) | 234 | 206 | ▼ 12.0% |
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 | 66.7% | 81.3% | ▲ 21.9% |
| February | 67.7% | 56.5% | ▼ 16.5% |
| March | 80.9% | 44.4% | ▼ 45.0% |
| April | 82.4% | 90.3% | ▲ 9.7% |
| May | 67.7% | 93.3% | ▲ 37.8% |
| June | 56.7% | 40.0% | ▼ 29.4% |
| July | 60.0% | 46.2% | ▼ 23.1% |
| August | 81.4% | – | – |
| September | 79.1% | – | – |
| October | 76.9% | – | in progress |
| November | 83.3% | – | – |
| December | 85.0% | – | – |
| Year-to-date average (Jan–Jul) | 68.8% | 64.6% | ▼ 6.2% |
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 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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 99.2% 658
- Cancelled 0.8% 5
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 11 | 11 | 72.7% | 0 |
| November 2024 | 26 | 26 | 65.4% | 0 |
| December 2024 | 29 | 29 | 65.5% | 0 |
| January 2025 | 28 | 27 | 66.7% | 1 |
| February 2025 | 34 | 34 | 67.7% | 0 |
| March 2025 | 47 | 47 | 80.9% | 0 |
| April 2025 | 34 | 34 | 82.4% | 0 |
| May 2025 | 31 | 31 | 67.7% | 0 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 30 | 30 | 60.0% | 0 |
| August 2025 | 43 | 43 | 81.4% | 0 |
| September 2025 | 43 | 43 | 79.1% | 0 |
| October 2025 | 26 | 26 | 76.9% | 0 |
| November 2025 | 25 | 24 | 83.3% | 1 |
| December 2025 | 20 | 20 | 85.0% | 0 |
| January 2026 | 33 | 32 | 81.3% | 1 |
| February 2026 | 46 | 46 | 56.5% | 0 |
| March 2026 | 37 | 36 | 44.4% | 1 |
| April 2026 | 31 | 31 | 90.3% | 0 |
| May 2026 | 31 | 30 | 93.3% | 1 |
| June 2026 | 15 | 15 | 40.0% | 0 |
| July 2026 | 13 | 13 | 46.2% | 0 |