WN4591
WN4591 (Southwest Airlines) is a multi-stop service on 15 routes, busiest Santa Barbara to Oakland. Of 341 departures recorded from October 2024 to July 2026, 74.5% left on time, according to the US BTS.
- On-time departures74.5%of 341 flights
- Average delay13.4 min
- July 202630▲ 650.0%vs July 2025
- Cancelled1.2%
- Legs flown under this number15
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 27 | 1 | ▼ 96.3% |
| February | 34 | – | – |
| March | 18 | 5 | ▼ 72.2% |
| April | 26 | 15 | ▼ 42.3% |
| May | 31 | 18 | ▼ 41.9% |
| June | 8 | 29 | ▲ 262.5% |
| July | 4 | 30 | ▲ 650.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 14 | – | in progress |
| November | 2 | – | – |
| December | 2 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 85.2% | 0.0% | ▼ 100.0% |
| February | 70.6% | – | – |
| March | 94.4% | 80.0% | ▼ 15.3% |
| April | 88.0% | 66.7% | ▼ 24.2% |
| May | 100.0% | 47.1% | ▼ 52.9% |
| June | 75.0% | 32.1% | ▼ 57.1% |
| July | 66.7% | 36.7% | ▼ 45.0% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 50.0% | – | – |
| December | 0.0% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 1 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| 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 98.8% 337
- Cancelled 1.2% 4
Share of all recorded flights in the period, all legs. · Oct 12, 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 |
|---|---|---|---|---|
| SBA OAK Santa Barbara Municipal Airport – Oakland San Francisco Bay Airport | 424 | 2.3 min | 86.9% | 99 |
| PDX PHX Portland International Airport – Phoenix Sky Harbor International Airport | 1,625 | 4.1 min | 93.1% | 58 |
| MCO IND Orlando International Airport – Indianapolis International Airport | 1,336 | 50.9 min | 33.9% | 57 |
| LAS TUL Harry Reid International Airport – Tulsa International Airport | 1,727 | 19.6 min | 54.6% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 100.0% | 0 |
| November 2024 | 30 | 30 | 86.7% | 0 |
| December 2024 | 26 | 26 | 84.6% | 0 |
| January 2025 | 27 | 27 | 85.2% | 0 |
| February 2025 | 34 | 34 | 70.6% | 0 |
| March 2025 | 18 | 18 | 94.4% | 0 |
| April 2025 | 26 | 25 | 88.0% | 1 |
| May 2025 | 31 | 31 | 100.0% | 0 |
| June 2025 | 8 | 8 | 75.0% | 0 |
| July 2025 | 4 | 3 | 66.7% | 1 |
| August 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 14 | 14 | 100.0% | 0 |
| November 2025 | 2 | 2 | 50.0% | 0 |
| December 2025 | 2 | 2 | 0.0% | 0 |
| January 2026 | 1 | 1 | 0.0% | 0 |
| March 2026 | 5 | 5 | 80.0% | 0 |
| April 2026 | 15 | 15 | 66.7% | 0 |
| May 2026 | 18 | 17 | 47.1% | 1 |
| June 2026 | 29 | 28 | 32.1% | 1 |
| July 2026 | 30 | 30 | 36.7% | 0 |