WN3451
WN3451 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Milwaukee to Las Vegas. Of 583 departures recorded from October 2024 to July 2026, 71.3% left on time, according to the US BTS.
- On-time departures71.3%of 583 flights
- Average delay15.7 min
- July 202633▼ 8.3%vs July 2025
- Cancelled0.9%
- Legs flown under this number23
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 | 29 | 5 | ▼ 82.8% |
| February | 20 | 3 | ▼ 85.0% |
| March | 8 | 27 | ▲ 237.5% |
| April | 21 | 30 | ▲ 42.9% |
| May | 26 | 31 | ▲ 19.2% |
| June | 32 | 34 | ▲ 6.3% |
| July | 36 | 33 | ▼ 8.3% |
| August | 49 | – | – |
| September | 52 | – | – |
| October | 40 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 172 | 163 | ▼ 5.2% |
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 | 93.1% | 80.0% | ▼ 14.1% |
| February | 95.0% | 66.7% | ▼ 29.8% |
| March | 75.0% | 76.9% | ▲ 2.6% |
| April | 95.2% | 80.0% | ▼ 16.0% |
| May | 84.6% | 64.5% | ▼ 23.8% |
| June | 75.0% | 44.1% | ▼ 41.2% |
| July | 75.0% | 45.5% | ▼ 39.4% |
| August | 71.4% | – | – |
| September | 51.0% | – | – |
| October | 90.0% | – | in progress |
| November | 53.9% | – | – |
| December | 39.3% | – | – |
| Year-to-date average (Jan–Jul) | 84.7% | 65.4% | ▼ 22.8% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.1% 578
- Cancelled 0.9% 5
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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 75.0% | 0 |
| November 2024 | 20 | 20 | 95.0% | 0 |
| December 2024 | 18 | 18 | 94.4% | 0 |
| January 2025 | 29 | 29 | 93.1% | 0 |
| February 2025 | 20 | 20 | 95.0% | 0 |
| March 2025 | 8 | 8 | 75.0% | 0 |
| April 2025 | 21 | 21 | 95.2% | 0 |
| May 2025 | 26 | 26 | 84.6% | 0 |
| June 2025 | 32 | 32 | 75.0% | 0 |
| July 2025 | 36 | 36 | 75.0% | 0 |
| August 2025 | 49 | 49 | 71.4% | 0 |
| September 2025 | 52 | 51 | 51.0% | 1 |
| October 2025 | 40 | 40 | 90.0% | 0 |
| November 2025 | 28 | 26 | 53.9% | 2 |
| December 2025 | 29 | 28 | 39.3% | 1 |
| January 2026 | 5 | 5 | 80.0% | 0 |
| February 2026 | 3 | 3 | 66.7% | 0 |
| March 2026 | 27 | 26 | 76.9% | 1 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 31 | 31 | 64.5% | 0 |
| June 2026 | 34 | 34 | 44.1% | 0 |
| July 2026 | 33 | 33 | 45.5% | 0 |