WN4626
WN4626 (Southwest Airlines) is a multi-stop service on 13 routes, busiest Sacramento to Ontario. Of 448 departures recorded from October 2024 to July 2026, 72.2% left on time, according to the US BTS.
- On-time departures72.2%of 448 flights
- Average delay14.5 min
- July 202626
- Cancelled1.3%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 31 | ▲ 10.7% |
| February | 24 | 18 | ▼ 25.0% |
| March | 4 | 29 | ▲ 625.0% |
| April | – | 42 | – |
| May | – | 43 | – |
| June | – | 30 | – |
| July | – | 26 | – |
| August | – | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 82.1% | 90.0% | ▲ 9.6% |
| February | 70.8% | 100.0% | ▲ 41.2% |
| March | 50.0% | 93.1% | ▲ 86.2% |
| April | – | 73.8% | – |
| May | – | 62.8% | – |
| June | – | 55.2% | – |
| July | – | 48.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | 89.7% | – | in progress |
| November | 44.8% | – | – |
| December | 51.6% | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | – | 1 | – |
| July | – | 1 | – |
| August | – | – | – |
| September | – | – | – |
| October | 1 | – | 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 98.7% 442
- Cancelled 1.3% 6
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SMF ONT Sacramento International Airport – Ontario International Airport | 627 | 11.1 min | 75.5% | 98 |
| HOU FLL William P. Hobby Airport – Fort Lauderdale Hollywood International Airport | 1,538 | 24.1 min | 48.4% | 64 |
| LAS LGB Harry Reid International Airport – Long Beach International Airport | 372 | 19.7 min | 56.0% | 50 |
| BWI ATL Baltimore/Washington International Thurgood Marshall Airport – Hartsfield Jackson Atlanta International Airport | 928 | 39.1 min | 48.9% | 49 |
| MSP BWI Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Baltimore/Washington International Thurgood Marshall Airport | 1,504 | -1.3 min | 95.6% | 47 |
| TUS DEN Tucson International Airport – Denver International Airport | 1,029 | 13.2 min | 90.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 81.3% | 0 |
| November 2024 | 32 | 31 | 83.9% | 1 |
| December 2024 | 35 | 35 | 74.3% | 0 |
| January 2025 | 28 | 28 | 82.1% | 0 |
| February 2025 | 24 | 24 | 70.8% | 0 |
| March 2025 | 4 | 4 | 50.0% | 0 |
| October 2025 | 30 | 29 | 89.7% | 1 |
| November 2025 | 29 | 29 | 44.8% | 0 |
| December 2025 | 31 | 31 | 51.6% | 0 |
| January 2026 | 31 | 30 | 90.0% | 1 |
| February 2026 | 18 | 17 | 100.0% | 1 |
| March 2026 | 29 | 29 | 93.1% | 0 |
| April 2026 | 42 | 42 | 73.8% | 0 |
| May 2026 | 43 | 43 | 62.8% | 0 |
| June 2026 | 30 | 29 | 55.2% | 1 |
| July 2026 | 26 | 25 | 48.0% | 1 |