WN4134
WN4134 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Kansas City to Nashville. Of 315 departures recorded from October 2024 to July 2026, 76.4% left on time, according to the US BTS.
- On-time departures76.4%of 315 flights
- Average delay12.5 min
- July 202616
- Cancelled0.6%
- Legs flown under this number20
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods14 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 20 | 2 | ▼ 90.0% |
| February | 19 | – | – |
| March | 30 | 26 | ▼ 13.3% |
| April | 30 | 30 | 0.0% |
| May | 30 | 30 | 0.0% |
| June | 4 | 7 | ▲ 75.0% |
| July | – | 16 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 13 | – | – |
| December | 6 | – | – |
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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 94.4% | 100.0% | ▲ 5.9% |
| February | 94.7% | – | – |
| March | 86.7% | 92.3% | ▲ 6.5% |
| April | 70.0% | 56.7% | ▼ 19.0% |
| May | 73.3% | 60.0% | ▼ 18.2% |
| June | 100.0% | 100.0% | 0.0% |
| July | – | 75.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 69.2% | – | – |
| December | 66.7% | – | – |
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 periods14 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 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 99.4% 313
- Cancelled 0.6% 2
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 |
|---|---|---|---|---|
| MCI BNA Kansas City International Airport – Nashville International Airport | 790 | 4.7 min | 95.0% | 62 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 20.4 min | 57.9% | 57 |
| MCO SDF Orlando International Airport – Louisville Muhammad Ali International Airport | 1,158 | 22.0 min | 71.9% | 57 |
| MIA ATL Miami International Airport – Hartsfield Jackson Atlanta International Airport | 959 | 3.5 min | 87.9% | 33 |
| ONT MDW Ontario International Airport – Chicago Midway International Airport | 2,740 | 2.7 min | 90.6% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 45.8% | 0 |
| November 2024 | 12 | 12 | 100.0% | 0 |
| December 2024 | 16 | 16 | 93.8% | 0 |
| January 2025 | 20 | 18 | 94.4% | 2 |
| February 2025 | 19 | 19 | 94.7% | 0 |
| March 2025 | 30 | 30 | 86.7% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 30 | 30 | 73.3% | 0 |
| June 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 13 | 13 | 69.2% | 0 |
| December 2025 | 6 | 6 | 66.7% | 0 |
| January 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 26 | 26 | 92.3% | 0 |
| April 2026 | 30 | 30 | 56.7% | 0 |
| May 2026 | 30 | 30 | 60.0% | 0 |
| June 2026 | 7 | 7 | 100.0% | 0 |
| July 2026 | 16 | 16 | 75.0% | 0 |