WN4142
WN4142 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Oakland to Burbank. Of 315 departures recorded from October 2024 to July 2026, 75.6% left on time, according to the US BTS.
- On-time departures75.6%of 315 flights
- Average delay11.4 min
- July 202626
- Cancelled0.0%
- Legs flown under this number26
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 | 4 | 3 | ▼ 25.0% |
| February | 2 | 6 | ▲ 200.0% |
| March | 21 | 30 | ▲ 42.9% |
| April | 30 | 7 | ▼ 76.7% |
| May | 33 | 2 | ▼ 93.9% |
| June | 5 | 23 | ▲ 360.0% |
| July | – | 26 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 26 | – | – |
| December | 22 | – | – |
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 | 100.0% | 66.7% | ▼ 33.3% |
| February | 50.0% | 66.7% | ▲ 33.3% |
| March | 85.7% | 63.3% | ▼ 26.1% |
| April | 76.7% | 85.7% | ▲ 11.8% |
| May | 75.8% | 100.0% | ▲ 32.0% |
| June | 20.0% | 73.9% | ▲ 269.6% |
| July | – | 76.9% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 92.3% | – | – |
| December | 72.7% | – | – |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | 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 100.0% 315
- Cancelled 0.0% 0
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| OAK BUR Oakland San Francisco Bay Airport – Hollywood Burbank/Bob Hope Airport | 523 | 11.5 min | 73.7% | 57 |
| MCO STL Orlando International Airport – St. Louis Lambert International Airport | 1,420 | 6.3 min | 87.0% | 46 |
| PHX COS Phoenix Sky Harbor International Airport – City of Colorado Springs Municipal Airport | 887 | 13.3 min | 71.4% | 42 |
| ONT SMF Ontario International Airport – Sacramento International Airport | 627 | 15.1 min | 71.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 52 | 52 | 76.9% | 0 |
| November 2024 | 11 | 11 | 90.9% | 0 |
| December 2024 | 12 | 12 | 50.0% | 0 |
| January 2025 | 4 | 4 | 100.0% | 0 |
| February 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 21 | 21 | 85.7% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 33 | 33 | 75.8% | 0 |
| June 2025 | 5 | 5 | 20.0% | 0 |
| November 2025 | 26 | 26 | 92.3% | 0 |
| December 2025 | 22 | 22 | 72.7% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| February 2026 | 6 | 6 | 66.7% | 0 |
| March 2026 | 30 | 30 | 63.3% | 0 |
| April 2026 | 7 | 7 | 85.7% | 0 |
| May 2026 | 2 | 2 | 100.0% | 0 |
| June 2026 | 23 | 23 | 73.9% | 0 |
| July 2026 | 26 | 26 | 76.9% | 0 |