WN4373
WN4373 (Southwest Airlines) is a multi-stop service on 15 routes, busiest Dallas to Oakland. Of 332 departures recorded from October 2024 to July 2026, 76.4% left on time, according to the US BTS.
- On-time departures76.4%of 332 flights
- Average delay13.2 min
- July 202627▲ 237.5%vs July 2025
- Cancelled3.0%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 29 | 30 | ▲ 3.4% |
| February | 28 | 35 | ▲ 25.0% |
| March | 21 | 5 | ▼ 76.2% |
| April | 4 | – | – |
| May | – | – | – |
| June | 8 | 23 | ▲ 187.5% |
| July | 8 | 27 | ▲ 237.5% |
| August | 2 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 7 | – | – |
| December | 13 | – | – |
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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 60.7% | 82.1% | ▲ 35.3% |
| February | 71.4% | 91.2% | ▲ 27.6% |
| March | 85.7% | 80.0% | ▼ 6.7% |
| April | 75.0% | – | – |
| May | – | – | – |
| June | 62.5% | 50.0% | ▼ 20.0% |
| July | 62.5% | 60.9% | ▼ 2.6% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 71.4% | – | – |
| December | 46.2% | – | – |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 2 | ▲ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | – | – |
| May | – | – | – |
| June | 0 | 1 | – |
| July | 0 | 4 | – |
| 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 97.0% 322
- Cancelled 3.0% 10
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 |
|---|---|---|---|---|
| DAL OAK Dallas Love Field – Oakland San Francisco Bay Airport | 2,358 | 15.2 min | 71.3% | 82 |
| BWI AUS Baltimore/Washington International Thurgood Marshall Airport – Austin Bergstrom International Airport | 2,156 | 3.0 min | 85.5% | 58 |
| BWI GRR Baltimore/Washington International Thurgood Marshall Airport – Gerald R. Ford International Airport | 849 | 30.5 min | 55.6% | 50 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 25 | 24 | 83.3% | 1 |
| December 2024 | 21 | 21 | 85.7% | 0 |
| January 2025 | 29 | 28 | 60.7% | 1 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 21 | 21 | 85.7% | 0 |
| April 2025 | 4 | 4 | 75.0% | 0 |
| June 2025 | 8 | 8 | 62.5% | 0 |
| July 2025 | 8 | 8 | 62.5% | 0 |
| August 2025 | 2 | 2 | 50.0% | 0 |
| October 2025 | 26 | 26 | 100.0% | 0 |
| November 2025 | 7 | 7 | 71.4% | 0 |
| December 2025 | 13 | 13 | 46.2% | 0 |
| January 2026 | 30 | 28 | 82.1% | 2 |
| February 2026 | 35 | 34 | 91.2% | 1 |
| March 2026 | 5 | 5 | 80.0% | 0 |
| June 2026 | 23 | 22 | 50.0% | 1 |
| July 2026 | 27 | 23 | 60.9% | 4 |