WN4984
WN4984 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Sacramento to Ontario. Of 231 departures recorded from November 2024 to July 2026, 77.8% left on time, according to the US BTS.
- On-time departures77.8%of 231 flights
- Average delay12.0 min
- July 202627
- Cancelled0.4%
- Legs flown under this number17
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 60 | ▲ 5,900.0% |
| February | – | 46 | – |
| March | – | 8 | – |
| April | 21 | – | – |
| May | 29 | 3 | ▼ 89.7% |
| June | 4 | 23 | ▲ 475.0% |
| July | – | 27 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
according to the US BTS · November 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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 89.8% | ▼ 10.2% |
| February | – | 100.0% | – |
| March | – | 87.5% | – |
| April | 71.4% | – | – |
| May | 58.6% | 100.0% | ▲ 70.6% |
| June | 50.0% | 52.2% | ▲ 4.3% |
| July | – | 63.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | 0 | – | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| 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 99.6% 230
- Cancelled 0.4% 1
Share of all recorded flights in the period, all legs. · Nov 23, 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 |
|---|---|---|---|---|
| SMF ONT Sacramento International Airport – Ontario International Airport | 627 | 18.7 min | 58.0% | 50 |
| DEN PHX Denver International Airport – Phoenix Sky Harbor International Airport | 968 | 1.3 min | 93.6% | 47 |
| RNO LAS Reno Tahoe International Airport – Harry Reid International Airport | 556 | 13.1 min | 75.0% | 40 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 2 | 2 | 100.0% | 0 |
| December 2024 | 6 | 6 | 50.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| April 2025 | 21 | 21 | 71.4% | 0 |
| May 2025 | 29 | 29 | 58.6% | 0 |
| June 2025 | 4 | 4 | 50.0% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 60 | 59 | 89.8% | 1 |
| February 2026 | 46 | 46 | 100.0% | 0 |
| March 2026 | 8 | 8 | 87.5% | 0 |
| May 2026 | 3 | 3 | 100.0% | 0 |
| June 2026 | 23 | 23 | 52.2% | 0 |
| July 2026 | 27 | 27 | 63.0% | 0 |