WN4875
WN4875 (Southwest Airlines) is a multi-stop service on 12 routes, busiest San Diego to Reno. Of 104 departures recorded from October 2024 to July 2026, 50.0% left on time, according to the US BTS.
- On-time departures50.0%of 104 flights
- Average delay33.8 min
- July 202630
- Cancelled1.9%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 3 | – |
| February | – | 2 | – |
| March | 4 | 1 | ▼ 75.0% |
| April | 1 | – | – |
| May | – | – | – |
| June | – | 27 | – |
| July | – | 30 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 5 | – | – |
| December | 11 | – | – |
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 periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 100.0% | – |
| February | – | 100.0% | – |
| March | 75.0% | 100.0% | ▲ 33.3% |
| April | 0.0% | – | – |
| May | – | – | – |
| June | – | 23.1% | – |
| July | – | 23.3% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | 60.0% | – | – |
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 periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | – | – |
| May | – | – | – |
| June | – | 1 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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 98.1% 102
- Cancelled 1.9% 2
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SAN RNO San Diego International Airport – Reno Tahoe International Airport | 787 | 57.2 min | 23.2% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 88.2% | 0 |
| November 2024 | 2 | 2 | 100.0% | 0 |
| December 2024 | 1 | 1 | 100.0% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 1 | 1 | 0.0% | 0 |
| November 2025 | 5 | 5 | 100.0% | 0 |
| December 2025 | 11 | 10 | 60.0% | 1 |
| January 2026 | 3 | 3 | 100.0% | 0 |
| February 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 27 | 26 | 23.1% | 1 |
| July 2026 | 30 | 30 | 23.3% | 0 |