WN4208
WN4208 (Southwest Airlines) is a multi-stop service on 19 routes, busiest San Francisco to Burbank. Of 300 departures recorded from October 2024 to July 2026, 58.9% left on time, according to the US BTS.
- On-time departures58.9%of 300 flights
- Average delay22.0 min
- July 202621▲ 162.5%vs July 2025
- Cancelled0.3%
- Legs flown under this number19
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 | 3 | 3 | 0.0% |
| February | 10 | 13 | ▲ 30.0% |
| March | 2 | 9 | ▲ 350.0% |
| April | – | 26 | – |
| May | 2 | 31 | ▲ 1,450.0% |
| June | 8 | 23 | ▲ 187.5% |
| July | 8 | 21 | ▲ 162.5% |
| August | 30 | – | – |
| September | 30 | – | – |
| October | 18 | – | in progress |
| November | 17 | – | – |
| December | 15 | – | – |
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 | 66.7% | 66.7% | 0.0% |
| February | 80.0% | 46.2% | ▼ 42.3% |
| March | 50.0% | 88.9% | ▲ 77.8% |
| April | – | 50.0% | – |
| May | 100.0% | 48.4% | ▼ 51.6% |
| June | 87.5% | 43.5% | ▼ 50.3% |
| July | 62.5% | 76.2% | ▲ 21.9% |
| August | 56.7% | – | – |
| September | 48.3% | – | – |
| October | 55.6% | – | in progress |
| November | 52.9% | – | – |
| December | 40.0% | – | – |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| 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 99.7% 299
- Cancelled 0.3% 1
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO BUR San Francisco International Airport – Hollywood Burbank/Bob Hope Airport | 525 | 33.9 min | 44.8% | 58 |
| SAN RNO San Diego International Airport – Reno Tahoe International Airport | 787 | 28.3 min | 51.0% | 50 |
| SAN AUS San Diego International Airport – Austin Bergstrom International Airport | 1,871 | 33.9 min | 48.6% | 35 |
| BOS DEN Boston Logan International Airport – Denver International Airport | 2,816 | 18.0 min | 57.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 3 | 3 | 66.7% | 0 |
| November 2024 | 15 | 15 | 80.0% | 0 |
| December 2024 | 13 | 13 | 84.6% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| February 2025 | 10 | 10 | 80.0% | 0 |
| March 2025 | 2 | 2 | 50.0% | 0 |
| May 2025 | 2 | 2 | 100.0% | 0 |
| June 2025 | 8 | 8 | 87.5% | 0 |
| July 2025 | 8 | 8 | 62.5% | 0 |
| August 2025 | 30 | 30 | 56.7% | 0 |
| September 2025 | 30 | 29 | 48.3% | 1 |
| October 2025 | 18 | 18 | 55.6% | 0 |
| November 2025 | 17 | 17 | 52.9% | 0 |
| December 2025 | 15 | 15 | 40.0% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| February 2026 | 13 | 13 | 46.2% | 0 |
| March 2026 | 9 | 9 | 88.9% | 0 |
| April 2026 | 26 | 26 | 50.0% | 0 |
| May 2026 | 31 | 31 | 48.4% | 0 |
| June 2026 | 23 | 23 | 43.5% | 0 |
| July 2026 | 21 | 21 | 76.2% | 0 |