WN235
WN235 (Southwest Airlines) is a multi-stop service on 33 routes, busiest Salt Lake City to Chicago. Of 828 departures recorded from October 2024 to July 2026, 76.3% left on time, according to the US BTS.
- On-time departures76.3%of 828 flights
- Average delay12.3 min
- July 202658▲ 93.3%vs July 2025
- Cancelled0.7%
- Legs flown under this number33
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 32 | ▲ 14.3% |
| February | 26 | 27 | ▲ 3.8% |
| March | 31 | 31 | 0.0% |
| April | 39 | 40 | ▲ 2.6% |
| May | 44 | 43 | ▼ 2.3% |
| June | 31 | 59 | ▲ 90.3% |
| July | 30 | 58 | ▲ 93.3% |
| August | 54 | – | – |
| September | 56 | – | – |
| October | 32 | – | in progress |
| November | 42 | – | – |
| December | 35 | – | – |
| Year to date (Jan–Jul) | 229 | 290 | ▲ 26.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 92.9% | 80.7% | ▼ 13.1% |
| February | 88.5% | 80.8% | ▼ 8.7% |
| March | 93.6% | 67.7% | ▼ 27.6% |
| April | 89.7% | 75.0% | ▼ 16.4% |
| May | 88.6% | 53.5% | ▼ 39.7% |
| June | 64.5% | 44.1% | ▼ 31.7% |
| July | 56.7% | 54.6% | ▼ 3.7% |
| August | 88.9% | – | – |
| September | 90.9% | – | – |
| October | 46.9% | – | in progress |
| November | 92.9% | – | – |
| December | 74.3% | – | – |
| Year-to-date average (Jan–Jul) | 82.1% | 65.2% | ▼ 20.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 3 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 5 |
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 99.3% 822
- Cancelled 0.7% 6
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
12Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 27 | 27 | 92.6% | 0 |
| November 2024 | 31 | 31 | 90.3% | 0 |
| December 2024 | 32 | 32 | 96.9% | 0 |
| January 2025 | 28 | 28 | 92.9% | 0 |
| February 2025 | 26 | 26 | 88.5% | 0 |
| March 2025 | 31 | 31 | 93.6% | 0 |
| April 2025 | 39 | 39 | 89.7% | 0 |
| May 2025 | 44 | 44 | 88.6% | 0 |
| June 2025 | 31 | 31 | 64.5% | 0 |
| July 2025 | 30 | 30 | 56.7% | 0 |
| August 2025 | 54 | 54 | 88.9% | 0 |
| September 2025 | 56 | 55 | 90.9% | 1 |
| October 2025 | 32 | 32 | 46.9% | 0 |
| November 2025 | 42 | 42 | 92.9% | 0 |
| December 2025 | 35 | 35 | 74.3% | 0 |
| January 2026 | 32 | 31 | 80.7% | 1 |
| February 2026 | 27 | 26 | 80.8% | 1 |
| March 2026 | 31 | 31 | 67.7% | 0 |
| April 2026 | 40 | 40 | 75.0% | 0 |
| May 2026 | 43 | 43 | 53.5% | 0 |
| June 2026 | 59 | 59 | 44.1% | 0 |
| July 2026 | 58 | 55 | 54.6% | 3 |