WN1853
WN1853 (Southwest Airlines) is a multi-stop service on 40 routes, busiest San Antonio to Las Vegas. Of 733 departures recorded from October 2024 to July 2026, 74.4% left on time, according to the US BTS.
- On-time departures74.4%of 733 flights
- Average delay12.7 min
- July 202622▼ 26.7%vs July 2025
- Cancelled0.8%
- Legs flown under this number40
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 | 13 | 25 | ▲ 92.3% |
| February | 32 | 50 | ▲ 56.3% |
| March | 5 | 74 | ▲ 1,380.0% |
| April | 32 | 62 | ▲ 93.8% |
| May | 44 | 63 | ▲ 43.2% |
| June | 31 | 26 | ▼ 16.1% |
| July | 30 | 22 | ▼ 26.7% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 23 | – | in progress |
| November | 43 | – | – |
| December | 35 | – | – |
| Year to date (Jan–Jul) | 187 | 322 | ▲ 72.2% |
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 | 41.7% | 63.6% | ▲ 52.7% |
| February | 81.3% | 84.0% | ▲ 3.4% |
| March | 100.0% | 70.3% | ▼ 29.7% |
| April | 96.9% | 66.1% | ▼ 31.7% |
| May | 79.6% | 44.4% | ▼ 44.1% |
| June | 93.6% | 57.7% | ▼ 38.3% |
| July | 100.0% | 72.7% | ▼ 27.3% |
| August | 96.8% | – | – |
| September | 100.0% | – | – |
| October | 60.9% | – | in progress |
| November | 78.6% | – | – |
| December | 74.3% | – | – |
| Year-to-date average (Jan–Jul) | 84.7% | 65.6% | ▼ 22.6% |
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 | 1 | 3 | ▲ 200.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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 99.2% 727
- Cancelled 0.8% 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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 27 | 27 | 63.0% | 0 |
| November 2024 | 21 | 21 | 76.2% | 0 |
| December 2024 | 14 | 13 | 46.2% | 1 |
| January 2025 | 13 | 12 | 41.7% | 1 |
| February 2025 | 32 | 32 | 81.3% | 0 |
| March 2025 | 5 | 5 | 100.0% | 0 |
| April 2025 | 32 | 32 | 96.9% | 0 |
| May 2025 | 44 | 44 | 79.6% | 0 |
| June 2025 | 31 | 31 | 93.6% | 0 |
| July 2025 | 30 | 30 | 100.0% | 0 |
| August 2025 | 31 | 31 | 96.8% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 23 | 23 | 60.9% | 0 |
| November 2025 | 43 | 42 | 78.6% | 1 |
| December 2025 | 35 | 35 | 74.3% | 0 |
| January 2026 | 25 | 22 | 63.6% | 3 |
| February 2026 | 50 | 50 | 84.0% | 0 |
| March 2026 | 74 | 74 | 70.3% | 0 |
| April 2026 | 62 | 62 | 66.1% | 0 |
| May 2026 | 63 | 63 | 44.4% | 0 |
| June 2026 | 26 | 26 | 57.7% | 0 |
| July 2026 | 22 | 22 | 72.7% | 0 |