WN4612
WN4612 (Southwest Airlines) is a multi-stop service on 9 routes, busiest Louisville to Baltimore. Of 164 departures recorded from October 2024 to July 2026, 80.9% left on time, according to the US BTS.
- On-time departures80.9%of 164 flights
- Average delay9.7 min
- July 202631
- Cancelled1.2%
- Legs flown under this number9
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 4 | – |
| February | – | 1 | – |
| March | 18 | 10 | ▼ 44.4% |
| April | 5 | 3 | ▼ 40.0% |
| May | – | – | – |
| June | – | 27 | – |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | 25 | – | in progress |
| November | 18 | – | – |
| December | 18 | – | – |
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0.0% | – |
| February | – | 100.0% | – |
| March | 94.4% | 80.0% | ▼ 15.3% |
| April | 80.0% | 33.3% | ▼ 58.3% |
| May | – | – | – |
| June | – | 88.0% | – |
| July | – | 93.6% | – |
| August | – | – | – |
| September | – | – | – |
| October | 96.0% | – | in progress |
| November | 83.3% | – | – |
| December | 38.9% | – | – |
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 periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | – | – |
| June | – | 2 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | 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% 162
- Cancelled 1.2% 2
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 |
|---|---|---|---|---|
| SDF BWI Louisville Muhammad Ali International Airport – Baltimore/Washington International Thurgood Marshall Airport | 795 | 4.9 min | 91.1% | 58 |
| LAS SDF Harry Reid International Airport – Louisville Muhammad Ali International Airport | 2,607 | 25.7 min | 53.9% | 39 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 4 | 4 | 75.0% | 0 |
| March 2025 | 18 | 18 | 94.4% | 0 |
| April 2025 | 5 | 5 | 80.0% | 0 |
| October 2025 | 25 | 25 | 96.0% | 0 |
| November 2025 | 18 | 18 | 83.3% | 0 |
| December 2025 | 18 | 18 | 38.9% | 0 |
| January 2026 | 4 | 4 | 0.0% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 10 | 10 | 80.0% | 0 |
| April 2026 | 3 | 3 | 33.3% | 0 |
| June 2026 | 27 | 25 | 88.0% | 2 |
| July 2026 | 31 | 31 | 93.6% | 0 |