WN3913
WN3913 (Southwest Airlines) is a multi-stop service on 25 routes, busiest Louisville to Chicago. Of 536 departures recorded from October 2024 to July 2026, 74.6% left on time, according to the US BTS.
- On-time departures74.6%of 536 flights
- Average delay13.6 min
- July 202627▼ 22.9%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 periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 10 | 32 | ▲ 220.0% |
| February | 9 | 29 | ▲ 222.2% |
| March | 6 | 35 | ▲ 483.3% |
| April | 27 | 46 | ▲ 70.4% |
| May | 37 | 53 | ▲ 43.2% |
| June | 34 | 26 | ▼ 23.5% |
| July | 35 | 27 | ▼ 22.9% |
| August | 5 | – | – |
| September | – | – | – |
| October | 43 | – | in progress |
| November | 16 | – | – |
| December | 6 | – | – |
| Year to date (Jan–Jul) | 158 | 248 | ▲ 57.0% |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 70.0% | 90.3% | ▲ 29.0% |
| February | 88.9% | 82.8% | ▼ 6.9% |
| March | 100.0% | 47.1% | ▼ 52.9% |
| April | 77.8% | 82.2% | ▲ 5.7% |
| May | 89.2% | 69.8% | ▼ 21.7% |
| June | 85.3% | 46.2% | ▼ 45.9% |
| July | 70.6% | 29.6% | ▼ 58.0% |
| August | 80.0% | – | – |
| September | – | – | – |
| October | 97.7% | – | in progress |
| November | 50.0% | – | – |
| December | 33.3% | – | – |
| Year-to-date average (Jan–Jul) | 83.1% | 64.0% | ▼ 23.0% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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 99.3% 532
- Cancelled 0.7% 4
Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SDF MDW Louisville Muhammad Ali International Airport – Chicago Midway International Airport | 437 | 17.9 min | 76.7% | 61 |
| TUS LAS Tucson International Airport – Harry Reid International Airport | 587 | 2.7 min | 84.5% | 58 |
| ABQ MCI Albuquerque International Sunport – Kansas City International Airport | 1,154 | 9.0 min | 81.0% | 58 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 42.1 min | 34.0% | 50 |
| HOU BNA William P. Hobby Airport – Nashville International Airport | 1,078 | 3.8 min | 88.6% | 44 |
| DAL ELP Dallas Love Field – El Paso International Airport | 902 | 16.4 min | 64.1% | 39 |
| MDW BWI Chicago Midway International Airport – Baltimore/Washington International Thurgood Marshall Airport | 981 | 39.5 min | 41.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 100.0% | 0 |
| November 2024 | 25 | 25 | 80.0% | 0 |
| December 2024 | 28 | 28 | 85.7% | 0 |
| January 2025 | 10 | 10 | 70.0% | 0 |
| February 2025 | 9 | 9 | 88.9% | 0 |
| March 2025 | 6 | 6 | 100.0% | 0 |
| April 2025 | 27 | 27 | 77.8% | 0 |
| May 2025 | 37 | 37 | 89.2% | 0 |
| June 2025 | 34 | 34 | 85.3% | 0 |
| July 2025 | 35 | 34 | 70.6% | 1 |
| August 2025 | 5 | 5 | 80.0% | 0 |
| October 2025 | 43 | 43 | 97.7% | 0 |
| November 2025 | 16 | 16 | 50.0% | 0 |
| December 2025 | 6 | 6 | 33.3% | 0 |
| January 2026 | 32 | 31 | 90.3% | 1 |
| February 2026 | 29 | 29 | 82.8% | 0 |
| March 2026 | 35 | 34 | 47.1% | 1 |
| April 2026 | 46 | 45 | 82.2% | 1 |
| May 2026 | 53 | 53 | 69.8% | 0 |
| June 2026 | 26 | 26 | 46.2% | 0 |
| July 2026 | 27 | 27 | 29.6% | 0 |