WN4444
WN4444 (Southwest Airlines) is a multi-stop service on 32 routes, busiest Baltimore to Richmond. Of 460 departures recorded from October 2024 to July 2026, 73.5% left on time, according to the US BTS.
- On-time departures73.5%of 460 flights
- Average delay14.7 min
- July 202631▼ 13.9%vs July 2025
- Cancelled0.7%
- Legs flown under this number32
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 | 27 | 6 | ▼ 77.8% |
| February | 24 | 10 | ▼ 58.3% |
| March | 24 | 12 | ▼ 50.0% |
| April | 28 | 23 | ▼ 17.9% |
| May | 29 | 25 | ▼ 13.8% |
| June | 33 | 30 | ▼ 9.1% |
| July | 36 | 31 | ▼ 13.9% |
| August | 3 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 9 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 201 | 137 | ▼ 31.8% |
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 | 92.3% | 66.7% | ▼ 27.8% |
| February | 62.5% | 90.0% | ▲ 44.0% |
| March | 34.8% | 83.3% | ▲ 139.6% |
| April | 92.9% | 87.0% | ▼ 6.4% |
| May | 75.9% | 83.3% | ▲ 9.8% |
| June | 81.8% | 46.7% | ▼ 43.0% |
| July | 83.3% | 54.8% | ▼ 34.2% |
| August | 66.7% | – | – |
| September | – | – | – |
| October | 50.0% | – | in progress |
| November | 100.0% | – | – |
| December | 69.2% | – | – |
| Year-to-date average (Jan–Jul) | 74.8% | 73.1% | ▼ 2.2% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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% 457
- Cancelled 0.7% 3
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BWI RIC Baltimore/Washington International Thurgood Marshall Airport – Richmond International Airport | 194 | 10.9 min | 80.6% | 73 |
| DAL STL Dallas Love Field – St. Louis Lambert International Airport | 878 | 31.0 min | 52.0% | 50 |
| SAT STL San Antonio International Airport – St. Louis Lambert International Airport | 1,266 | 13.0 min | 73.8% | 42 |
| STL CLE St. Louis Lambert International Airport – Cleveland Hopkins International Airport | 783 | 15.2 min | 90.3% | 31 |
| SEA SJC Seattle–Tacoma International Airport – Mineta San Jose International Airport | 1,122 | 21.6 min | 51.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 65.0% | 0 |
| November 2024 | 25 | 25 | 92.0% | 0 |
| December 2024 | 22 | 22 | 86.4% | 0 |
| January 2025 | 27 | 26 | 92.3% | 1 |
| February 2025 | 24 | 24 | 62.5% | 0 |
| March 2025 | 24 | 23 | 34.8% | 1 |
| April 2025 | 28 | 28 | 92.9% | 0 |
| May 2025 | 29 | 29 | 75.9% | 0 |
| June 2025 | 33 | 33 | 81.8% | 0 |
| July 2025 | 36 | 36 | 83.3% | 0 |
| August 2025 | 3 | 3 | 66.7% | 0 |
| October 2025 | 30 | 30 | 50.0% | 0 |
| November 2025 | 9 | 9 | 100.0% | 0 |
| December 2025 | 13 | 13 | 69.2% | 0 |
| January 2026 | 6 | 6 | 66.7% | 0 |
| February 2026 | 10 | 10 | 90.0% | 0 |
| March 2026 | 12 | 12 | 83.3% | 0 |
| April 2026 | 23 | 23 | 87.0% | 0 |
| May 2026 | 25 | 24 | 83.3% | 1 |
| June 2026 | 30 | 30 | 46.7% | 0 |
| July 2026 | 31 | 31 | 54.8% | 0 |