WN4328
WN4328 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Nashville to Charleston. Of 364 departures recorded from October 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 364 flights
- Average delay14.5 min
- July 202623▼ 11.5%vs July 2025
- Cancelled0.8%
- Legs flown under this number25
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 | 27 | 3 | ▼ 88.9% |
| February | 24 | – | – |
| March | 4 | 34 | ▲ 750.0% |
| April | 20 | 7 | ▼ 65.0% |
| May | 25 | 1 | ▼ 96.0% |
| June | 28 | 20 | ▼ 28.6% |
| July | 26 | 23 | ▼ 11.5% |
| August | 5 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 28 | – | – |
| December | 26 | – | – |
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 | 80.0% | 33.3% | ▼ 58.3% |
| February | 79.2% | – | – |
| March | 100.0% | 72.7% | ▼ 27.3% |
| April | 75.0% | 85.7% | ▲ 14.3% |
| May | 44.0% | 100.0% | ▲ 127.3% |
| June | 75.0% | 60.0% | ▼ 20.0% |
| July | 73.1% | 65.2% | ▼ 10.8% |
| August | 60.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 71.4% | – | – |
| December | 69.2% | – | – |
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 | 2 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| 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 99.2% 361
- Cancelled 0.8% 3
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BNA CHS Nashville International Airport – Charleston International Airport | 706 | 6.0 min | 79.4% | 65 |
| PHX MCI Phoenix Sky Harbor International Airport – Kansas City International Airport | 1,677 | 26.0 min | 59.2% | 49 |
| SJC PHX Mineta San Jose International Airport – Phoenix Sky Harbor International Airport | 999 | 25.0 min | 66.7% | 42 |
| BHM DAL Birmingham-Shuttlesworth International Airport – Dallas Love Field | 942 | 22.7 min | 61.9% | 42 |
| PNS DAL Pensacola International Airport – Dallas Love Field | 951 | 0.1 min | 97.2% | 36 |
| RSW CMH Southwest Florida International Airport – John Glenn Columbus International Airport | 1,501 | 18.8 min | 71.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 100.0% | 0 |
| November 2024 | 24 | 24 | 91.7% | 0 |
| December 2024 | 27 | 27 | 85.2% | 0 |
| January 2025 | 27 | 25 | 80.0% | 2 |
| February 2025 | 24 | 24 | 79.2% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 20 | 20 | 75.0% | 0 |
| May 2025 | 25 | 25 | 44.0% | 0 |
| June 2025 | 28 | 28 | 75.0% | 0 |
| July 2025 | 26 | 26 | 73.1% | 0 |
| August 2025 | 5 | 5 | 60.0% | 0 |
| November 2025 | 28 | 28 | 71.4% | 0 |
| December 2025 | 26 | 26 | 69.2% | 0 |
| January 2026 | 3 | 3 | 33.3% | 0 |
| March 2026 | 34 | 33 | 72.7% | 1 |
| April 2026 | 7 | 7 | 85.7% | 0 |
| May 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 20 | 20 | 60.0% | 0 |
| July 2026 | 23 | 23 | 65.2% | 0 |