WN4613
WN4613 (Southwest Airlines) is a multi-stop service on 14 routes, busiest St Louis to Baltimore. Of 273 departures recorded from October 2024 to July 2026, 63.8% left on time, according to the US BTS.
- On-time departures63.8%of 273 flights
- Average delay18.3 min
- July 202619▼ 38.7%vs July 2025
- Cancelled0.7%
- Legs flown under this number14
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 | 4 | 1 | ▼ 75.0% |
| February | – | – | – |
| March | 16 | 14 | ▼ 12.5% |
| April | 16 | 12 | ▼ 25.0% |
| May | 18 | 8 | ▼ 55.6% |
| June | 28 | 18 | ▼ 35.7% |
| July | 31 | 19 | ▼ 38.7% |
| August | 4 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 3 | – | – |
| December | 2 | – | – |
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 | 25.0% | 100.0% | ▲ 300.0% |
| February | – | – | – |
| March | 62.5% | 71.4% | ▲ 14.3% |
| April | 62.5% | 83.3% | ▲ 33.3% |
| May | 44.4% | 62.5% | ▲ 40.6% |
| June | 71.4% | 72.2% | ▲ 1.1% |
| July | 70.0% | 42.1% | ▼ 39.8% |
| August | 75.0% | – | – |
| September | – | – | – |
| October | 26.9% | – | in progress |
| November | 66.7% | – | – |
| December | 50.0% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| 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 99.3% 271
- Cancelled 0.7% 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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| STL BWI St. Louis Lambert International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,185 | 13.4 min | 70.0% | 61 |
| DEN MSY Denver International Airport – Louis Armstrong New Orleans International Airport | 1,708 | 15.3 min | 65.7% | 36 |
| SJU MCO Luis Munoz Marin International Airport – Orlando International Airport | 1,913 | 21.0 min | 57.1% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 18 | 17 | 88.2% | 1 |
| December 2024 | 15 | 15 | 53.3% | 0 |
| January 2025 | 4 | 4 | 25.0% | 0 |
| March 2025 | 16 | 16 | 62.5% | 0 |
| April 2025 | 16 | 16 | 62.5% | 0 |
| May 2025 | 18 | 18 | 44.4% | 0 |
| June 2025 | 28 | 28 | 71.4% | 0 |
| July 2025 | 31 | 30 | 70.0% | 1 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| October 2025 | 26 | 26 | 26.9% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 2 | 2 | 50.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 14 | 14 | 71.4% | 0 |
| April 2026 | 12 | 12 | 83.3% | 0 |
| May 2026 | 8 | 8 | 62.5% | 0 |
| June 2026 | 18 | 18 | 72.2% | 0 |
| July 2026 | 19 | 19 | 42.1% | 0 |