WN3929
WN3929 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Oakland to Seattle. Of 384 departures recorded from October 2024 to May 2026, 83.8% left on time, according to the US BTS.
- On-time departures83.8%of 384 flights
- Average delay8.0 min
- May 20264▼ 85.2%vs May 2025
- Cancelled0.3%
- 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 | 49 | 3 | ▼ 93.9% |
| February | 47 | – | – |
| March | 40 | 15 | ▼ 62.5% |
| April | 29 | 6 | ▼ 79.3% |
| May | 27 | 4 | ▼ 85.2% |
| June | 30 | – | – |
| July | 31 | – | – |
| August | 4 | – | – |
| September | – | – | – |
| October | 16 | – | in progress |
| November | 5 | – | – |
| December | 11 | – | – |
according to the US BTS · October 2024 → May 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 | 91.7% | 66.7% | ▼ 27.3% |
| February | 97.9% | – | – |
| March | 90.0% | 53.3% | ▼ 40.7% |
| April | 86.2% | 100.0% | ▲ 16.0% |
| May | 85.2% | 100.0% | ▲ 17.4% |
| June | 83.3% | – | – |
| July | 74.2% | – | – |
| August | 0.0% | – | – |
| September | – | – | – |
| October | 62.5% | – | in progress |
| November | 60.0% | – | – |
| December | 72.7% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 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 | 1 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → May 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% 383
- Cancelled 0.3% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 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 SEA Oakland San Francisco Bay Airport – Seattle–Tacoma International Airport | 1,082 | -1.7 min | 93.6% | 62 |
| PHX STL Phoenix Sky Harbor International Airport – St. Louis Lambert International Airport | 2,026 | 17.1 min | 72.1% | 61 |
| BWI SAT Baltimore/Washington International Thurgood Marshall Airport – San Antonio International Airport | 2,262 | 7.3 min | 86.0% | 50 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 80.8% | 0 |
| November 2024 | 17 | 17 | 94.1% | 0 |
| December 2024 | 24 | 24 | 87.5% | 0 |
| January 2025 | 49 | 48 | 91.7% | 1 |
| February 2025 | 47 | 47 | 97.9% | 0 |
| March 2025 | 40 | 40 | 90.0% | 0 |
| April 2025 | 29 | 29 | 86.2% | 0 |
| May 2025 | 27 | 27 | 85.2% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 4 | 4 | 0.0% | 0 |
| October 2025 | 16 | 16 | 62.5% | 0 |
| November 2025 | 5 | 5 | 60.0% | 0 |
| December 2025 | 11 | 11 | 72.7% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| March 2026 | 15 | 15 | 53.3% | 0 |
| April 2026 | 6 | 6 | 100.0% | 0 |
| May 2026 | 4 | 4 | 100.0% | 0 |