WN621
WN621 (Southwest Airlines) is a multi-stop service on 48 routes, busiest Oklahoma City to Las Vegas. Of 846 departures recorded from October 2024 to July 2026, 71.4% left on time, according to the US BTS.
- On-time departures71.4%of 846 flights
- Average delay13.7 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.4%
- Legs flown under this number48
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 | 35 | 32 | ▼ 8.6% |
| February | 26 | 28 | ▲ 7.7% |
| March | 34 | 32 | ▼ 5.9% |
| April | 57 | 39 | ▼ 31.6% |
| May | 67 | 39 | ▼ 41.8% |
| June | 34 | 32 | ▼ 5.9% |
| July | 30 | 31 | ▲ 3.3% |
| August | 24 | – | – |
| September | 21 | – | – |
| October | 52 | – | in progress |
| November | 43 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 283 | 233 | ▼ 17.7% |
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 | 77.1% | 87.1% | ▲ 12.9% |
| February | 76.0% | 57.1% | ▼ 24.8% |
| March | 82.4% | 58.1% | ▼ 29.5% |
| April | 79.0% | 82.1% | ▲ 3.9% |
| May | 79.1% | 92.3% | ▲ 16.7% |
| June | 67.7% | 59.4% | ▼ 12.2% |
| July | 63.3% | 67.7% | ▲ 7.0% |
| August | 50.0% | – | – |
| September | 71.4% | – | – |
| October | 53.9% | – | in progress |
| November | 48.8% | – | – |
| December | 72.7% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 72.0% | ▼ 4.0% |
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 | 1 | 0 | ▼ 100.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 100.0% |
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 99.6% 843
- Cancelled 0.4% 3
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
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 36 | 36 | 69.4% | 0 |
| November 2024 | 59 | 59 | 89.8% | 0 |
| December 2024 | 62 | 62 | 66.1% | 0 |
| January 2025 | 35 | 35 | 77.1% | 0 |
| February 2025 | 26 | 25 | 76.0% | 1 |
| March 2025 | 34 | 34 | 82.4% | 0 |
| April 2025 | 57 | 57 | 79.0% | 0 |
| May 2025 | 67 | 67 | 79.1% | 0 |
| June 2025 | 34 | 34 | 67.7% | 0 |
| July 2025 | 30 | 30 | 63.3% | 0 |
| August 2025 | 24 | 24 | 50.0% | 0 |
| September 2025 | 21 | 21 | 71.4% | 0 |
| October 2025 | 52 | 52 | 53.9% | 0 |
| November 2025 | 43 | 43 | 48.8% | 0 |
| December 2025 | 33 | 33 | 72.7% | 0 |
| January 2026 | 32 | 31 | 87.1% | 1 |
| February 2026 | 28 | 28 | 57.1% | 0 |
| March 2026 | 32 | 31 | 58.1% | 1 |
| April 2026 | 39 | 39 | 82.1% | 0 |
| May 2026 | 39 | 39 | 92.3% | 0 |
| June 2026 | 32 | 32 | 59.4% | 0 |
| July 2026 | 31 | 31 | 67.7% | 0 |