WN4502
WN4502 (Southwest Airlines) is a multi-stop service on 17 routes, busiest Phoenix to Ontario. Of 243 departures recorded from November 2024 to July 2026, 69.0% left on time, according to the US BTS.
- On-time departures69.0%of 243 flights
- Average delay17.5 min
- July 202622
- 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 periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 3 | ▼ 25.0% |
| February | – | 7 | – |
| March | – | 28 | – |
| April | 17 | 9 | ▼ 47.1% |
| May | 22 | 5 | ▼ 77.3% |
| June | 3 | 16 | ▲ 433.3% |
| July | – | 22 | – |
| August | 19 | – | – |
| September | 21 | – | – |
| October | 26 | – | in progress |
| November | 5 | – | – |
| December | 17 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 50.0% | 66.7% | ▲ 33.3% |
| February | – | 28.6% | – |
| March | – | 75.0% | – |
| April | 52.9% | 100.0% | ▲ 88.9% |
| May | 54.6% | 100.0% | ▲ 83.3% |
| June | 33.3% | 50.0% | ▲ 50.0% |
| July | – | 52.4% | – |
| August | 73.7% | – | – |
| September | 81.0% | – | – |
| October | 92.3% | – | in progress |
| November | 80.0% | – | – |
| December | 64.7% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | – | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
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% 242
- 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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX ONT Phoenix Sky Harbor International Airport – Ontario International Airport | 522 | 19.3 min | 52.4% | 42 |
| SMF LGB Sacramento International Airport – Long Beach International Airport | 624 | 6.6 min | 77.5% | 40 |
| MSY DAL Louis Armstrong New Orleans International Airport – Dallas Love Field | 700 | 31.8 min | 48.5% | 34 |
| SMF SNA Sacramento International Airport – John Wayne Orange County International Airport | 650 | 7.1 min | 81.8% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 6 | 6 | 100.0% | 0 |
| December 2024 | 13 | 13 | 69.2% | 0 |
| January 2025 | 4 | 4 | 50.0% | 0 |
| April 2025 | 17 | 17 | 52.9% | 0 |
| May 2025 | 22 | 22 | 54.6% | 0 |
| June 2025 | 3 | 3 | 33.3% | 0 |
| August 2025 | 19 | 19 | 73.7% | 0 |
| September 2025 | 21 | 21 | 81.0% | 0 |
| October 2025 | 26 | 26 | 92.3% | 0 |
| November 2025 | 5 | 5 | 80.0% | 0 |
| December 2025 | 17 | 17 | 64.7% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| February 2026 | 7 | 7 | 28.6% | 0 |
| March 2026 | 28 | 28 | 75.0% | 0 |
| April 2026 | 9 | 9 | 100.0% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 16 | 16 | 50.0% | 0 |
| July 2026 | 22 | 21 | 52.4% | 1 |