WN4519
WN4519 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Nashville to Milwaukee. Of 220 departures recorded from October 2024 to July 2026, 74.6% left on time, according to the US BTS.
- On-time departures74.6%of 220 flights
- Average delay12.9 min
- July 202630
- Cancelled0.0%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 1 | ▼ 50.0% |
| February | – | 11 | – |
| March | 20 | 5 | ▼ 75.0% |
| April | 25 | 12 | ▼ 52.0% |
| May | 27 | 13 | ▼ 51.9% |
| June | 3 | 29 | ▲ 866.7% |
| July | – | 30 | – |
| August | 4 | – | – |
| September | 4 | – | – |
| October | – | – | in progress |
| November | 3 | – | – |
| December | 1 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 0.0% | 100.0% | – |
| February | – | 81.8% | – |
| March | 80.0% | 80.0% | 0.0% |
| April | 88.0% | 100.0% | ▲ 13.6% |
| May | 85.2% | 100.0% | ▲ 17.4% |
| June | 100.0% | 62.1% | ▼ 37.9% |
| July | – | 53.3% | – |
| August | 75.0% | – | – |
| September | 100.0% | – | – |
| October | – | – | in progress |
| November | 66.7% | – | – |
| December | 100.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 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 100.0% 220
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| BNA MKE Nashville International Airport – General Mitchell International Airport | 766 | 23.0 min | 56.1% | 57 |
| LAX BNA Los Angeles International Airport – Nashville International Airport | 2,886 | 4.9 min | 88.0% | 50 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 85.7% | 0 |
| November 2024 | 15 | 15 | 53.3% | 0 |
| December 2024 | 8 | 8 | 37.5% | 0 |
| January 2025 | 2 | 2 | 0.0% | 0 |
| March 2025 | 20 | 20 | 80.0% | 0 |
| April 2025 | 25 | 25 | 88.0% | 0 |
| May 2025 | 27 | 27 | 85.2% | 0 |
| June 2025 | 3 | 3 | 100.0% | 0 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| February 2026 | 11 | 11 | 81.8% | 0 |
| March 2026 | 5 | 5 | 80.0% | 0 |
| April 2026 | 12 | 12 | 100.0% | 0 |
| May 2026 | 13 | 13 | 100.0% | 0 |
| June 2026 | 29 | 29 | 62.1% | 0 |
| July 2026 | 30 | 30 | 53.3% | 0 |