WN4179
WN4179 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Nashville to Atlanta. Of 338 departures recorded from October 2024 to July 2026, 68.9% left on time, according to the US BTS.
- On-time departures68.9%of 338 flights
- Average delay14.7 min
- July 202626
- Cancelled1.2%
- 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 periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 28 | ▲ 21.7% |
| February | 19 | 28 | ▲ 47.4% |
| March | 24 | 30 | ▲ 25.0% |
| April | 5 | 30 | ▲ 500.0% |
| May | – | 30 | – |
| June | – | 26 | – |
| July | – | 26 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 2 | – | – |
| December | 10 | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 68.2% | 53.9% | ▼ 21.0% |
| February | 79.0% | 71.4% | ▼ 9.5% |
| March | 91.7% | 63.3% | ▼ 30.9% |
| April | 50.0% | 53.3% | ▲ 6.7% |
| May | – | 40.0% | – |
| June | – | 61.5% | – |
| July | – | 88.5% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | 80.0% | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| 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 98.8% 334
- Cancelled 1.2% 4
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BNA ATL Nashville International Airport – Hartsfield Jackson Atlanta International Airport | 344 | 5.7 min | 83.3% | 61 |
| BNA HOU Nashville International Airport – William P. Hobby Airport | 1,078 | 14.0 min | 64.3% | 58 |
| SAV BNA Savannah Hilton Head International Airport – Nashville International Airport | 672 | 31.2 min | 40.4% | 57 |
| LAS ONT Harry Reid International Airport – Ontario International Airport | 317 | 12.6 min | 72.7% | 33 |
| PHX ATL Phoenix Sky Harbor International Airport – Hartsfield Jackson Atlanta International Airport | 2,549 | 14.5 min | 62.5% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 84.6% | 0 |
| November 2024 | 15 | 15 | 86.7% | 0 |
| December 2024 | 29 | 29 | 75.9% | 0 |
| January 2025 | 23 | 22 | 68.2% | 1 |
| February 2025 | 19 | 19 | 79.0% | 0 |
| March 2025 | 24 | 24 | 91.7% | 0 |
| April 2025 | 5 | 4 | 50.0% | 1 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| December 2025 | 10 | 10 | 80.0% | 0 |
| January 2026 | 28 | 26 | 53.9% | 2 |
| February 2026 | 28 | 28 | 71.4% | 0 |
| March 2026 | 30 | 30 | 63.3% | 0 |
| April 2026 | 30 | 30 | 53.3% | 0 |
| May 2026 | 30 | 30 | 40.0% | 0 |
| June 2026 | 26 | 26 | 61.5% | 0 |
| July 2026 | 26 | 26 | 88.5% | 0 |