WN4975
WN4975 (Southwest Airlines) is a multi-stop service on 7 routes, busiest Oakland to Las Vegas. Of 205 departures recorded from November 2024 to July 2026, 73.1% left on time, according to the US BTS.
- On-time departures73.1%of 205 flights
- Average delay17.2 min
- July 202631
- Cancelled2.0%
- Legs flown under this number7
Recorded departures by month
Short series — WN4975 has only 11 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 periods9 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 26 | 22 | ▼ 15.4% |
| February | 24 | 23 | ▼ 4.2% |
| March | 4 | 3 | ▼ 25.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | 27 | – |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
according to the US BTS · November 2024 → July 2026
On-time departures by month
Short series — WN4975 has only 11 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 periods9 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 84.6% | 90.5% | ▲ 6.9% |
| February | 95.8% | 95.2% | ▼ 0.6% |
| March | 100.0% | 100.0% | 0.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | 29.6% | – |
| July | – | 26.7% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Short series — WN4975 has only 11 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 — WN4975 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods9 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 1 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | 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 98.0% 201
- Cancelled 2.0% 4
Share of all recorded flights in the period, all legs. · Nov 3, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| OAK LAS Oakland San Francisco Bay Airport – Harry Reid International Airport | 654 | 3.4 min | 93.5% | 92 |
| MDW BOS Chicago Midway International Airport – Boston Logan International Airport | 1,381 | 53.1 min | 28.1% | 58 |
| BWI RDU Baltimore/Washington International Thurgood Marshall Airport – Raleigh-Durham International Airport | 411 | 0.6 min | 92.9% | 45 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 23 | 23 | 95.7% | 0 |
| December 2024 | 21 | 21 | 81.0% | 0 |
| January 2025 | 26 | 26 | 84.6% | 0 |
| February 2025 | 24 | 24 | 95.8% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 22 | 21 | 90.5% | 1 |
| February 2026 | 23 | 21 | 95.2% | 2 |
| March 2026 | 3 | 3 | 100.0% | 0 |
| June 2026 | 27 | 27 | 29.6% | 0 |
| July 2026 | 31 | 30 | 26.7% | 1 |