WN4957
WN4957 (Southwest Airlines) is a multi-stop service on 8 routes, busiest Dallas to Washington. Of 138 departures recorded from November 2024 to July 2026, 61.5% left on time, according to the US BTS.
- On-time departures61.5%of 138 flights
- Average delay19.6 min
- July 202630
- Cancelled2.2%
- Legs flown under this number8
Recorded departures by month
Short series — WN4957 has only 10 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 26 | ▲ 2,500.0% |
| February | – | 38 | – |
| March | – | 6 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 27 | – |
| July | – | 30 | – |
| August | – | – | – |
| September | – | – | – |
| October | 4 | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
according to the US BTS · November 2024 → July 2026
On-time departures by month
Short series — WN4957 has only 10 months so far. Enough to show the level now, not enough to read a trend.
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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 96.0% | ▼ 4.0% |
| February | – | 86.5% | – |
| March | – | 100.0% | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 29.6% | – |
| July | – | 27.6% | – |
| August | – | – | – |
| September | – | – | – |
| October | 50.0% | – | in progress |
| November | 0.0% | – | – |
| December | – | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Short series — WN4957 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
Short series — WN4957 has only 10 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 1 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
according to the US BTS · November 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 97.8% 135
- Cancelled 2.2% 3
Share of all recorded flights in the period, all legs. · Nov 23, 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 |
|---|---|---|---|---|
| DAL DCA Dallas Love Field – Ronald Reagan Washington National Airport | 1,902 | 1.4 min | 89.3% | 58 |
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 38.8 min | 28.6% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 2 | 2 | 50.0% | 0 |
| December 2024 | 3 | 3 | 33.3% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 4 | 4 | 50.0% | 0 |
| November 2025 | 1 | 1 | 0.0% | 0 |
| January 2026 | 26 | 25 | 96.0% | 1 |
| February 2026 | 38 | 37 | 86.5% | 1 |
| March 2026 | 6 | 6 | 100.0% | 0 |
| June 2026 | 27 | 27 | 29.6% | 0 |
| July 2026 | 30 | 29 | 27.6% | 1 |