WN4670
WN4670 (Southwest Airlines) is a multi-stop service on 14 routes, busiest Oakland to Phoenix. Of 307 departures recorded from October 2024 to July 2026, 66.9% left on time, according to the US BTS.
- On-time departures66.9%of 307 flights
- Average delay19.5 min
- July 202627▲ 28.6%vs July 2025
- Cancelled2.6%
- Legs flown under this number14
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 24 | 7 | ▼ 70.8% |
| February | 24 | 18 | ▼ 25.0% |
| March | 4 | 2 | ▼ 50.0% |
| April | 23 | – | – |
| May | 27 | – | – |
| June | 23 | 23 | 0.0% |
| July | 21 | 27 | ▲ 28.6% |
| August | 4 | – | – |
| September | – | – | – |
| October | 43 | – | in progress |
| November | 4 | – | – |
| December | 4 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 87.5% | 66.7% | ▼ 23.8% |
| February | 54.2% | 62.5% | ▲ 15.4% |
| March | 75.0% | 100.0% | ▲ 33.3% |
| April | 100.0% | – | – |
| May | 96.3% | – | – |
| June | 69.6% | 0.0% | ▼ 100.0% |
| July | 61.9% | 28.0% | ▼ 54.8% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 79.1% | – | in progress |
| November | 66.7% | – | – |
| December | 75.0% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | – | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| 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 97.4% 299
- Cancelled 2.6% 8
Share of all recorded flights in the period, all legs. · Oct 14, 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 |
|---|---|---|---|---|
| OAK PHX Oakland San Francisco Bay Airport – Phoenix Sky Harbor International Airport | 1,039 | 12.8 min | 69.9% | 73 |
| BWI FLL Baltimore/Washington International Thurgood Marshall Airport – Fort Lauderdale Hollywood International Airport | 1,493 | -1.4 min | 98.1% | 53 |
| STL JAX St. Louis Lambert International Airport – Jacksonville International Airport | 1,213 | 17.7 min | 66.7% | 45 |
| DEN SFO Denver International Airport – San Francisco International Airport | 1,553 | 69.8 min | 2.6% | 38 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 5 | 80.0% | 2 |
| November 2024 | 16 | 16 | 81.3% | 0 |
| December 2024 | 6 | 6 | 33.3% | 0 |
| January 2025 | 24 | 24 | 87.5% | 0 |
| February 2025 | 24 | 24 | 54.2% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 23 | 23 | 100.0% | 0 |
| May 2025 | 27 | 27 | 96.3% | 0 |
| June 2025 | 23 | 23 | 69.6% | 0 |
| July 2025 | 21 | 21 | 61.9% | 0 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 43 | 43 | 79.1% | 0 |
| November 2025 | 4 | 3 | 66.7% | 1 |
| December 2025 | 4 | 4 | 75.0% | 0 |
| January 2026 | 7 | 6 | 66.7% | 1 |
| February 2026 | 18 | 16 | 62.5% | 2 |
| March 2026 | 2 | 2 | 100.0% | 0 |
| June 2026 | 23 | 23 | 0.0% | 0 |
| July 2026 | 27 | 25 | 28.0% | 2 |