WN4977
WN4977 (Southwest Airlines) is a multi-stop service on 5 routes, busiest Oakland to Burbank. Of 110 departures recorded from January 2026 to July 2026, 75.7% left on time, according to the US BTS.
- On-time departures75.7%of 110 flights
- Average delay13.6 min
- July 202627
- Cancelled2.7%
- Legs flown under this number5
Recorded departures by month
Short series — WN4977 has only 6 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 periods6 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 26 | – |
| February | – | 25 | – |
| March | – | 4 | – |
| April | – | 1 | – |
| May | – | – | – |
| June | – | 27 | – |
| July | – | 27 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → July 2026
On-time departures by month
Short series — WN4977 has only 6 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 periods6 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 96.2% | – |
| February | – | 70.8% | – |
| March | – | 100.0% | – |
| April | – | 100.0% | – |
| May | – | – | – |
| June | – | 66.7% | – |
| July | – | 64.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → July 2026
Average departure delay by month
Short series — WN4977 has only 6 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 · January 2026 → July 2026
Cancelled departures by month
Short series — WN4977 has only 6 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods6 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 1 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 2 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · January 2026 → 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 97.3% 107
- Cancelled 2.7% 3
Share of all recorded flights in the period, all legs. · Jan 6, 2026 → 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 |
|---|---|---|---|---|
| OAK BUR Oakland San Francisco Bay Airport – Hollywood Burbank/Bob Hope Airport | 523 | 23.1 min | 62.5% | 50 |
| SJC LAS Mineta San Jose International Airport – Harry Reid International Airport | 620 | 6.0 min | 85.1% | 47 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2026 | 26 | 26 | 96.2% | 0 |
| February 2026 | 25 | 24 | 70.8% | 1 |
| March 2026 | 4 | 4 | 100.0% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 27 | 27 | 66.7% | 0 |
| July 2026 | 27 | 25 | 64.0% | 2 |