WN1533
WN1533 (Southwest Airlines) is a multi-stop service on 38 routes, busiest San Diego to Kansas City. Of 721 departures recorded from October 2024 to July 2026, 73.4% left on time, according to the US BTS.
- On-time departures73.4%of 721 flights
- Average delay16.2 min
- July 202610▼ 66.7%vs July 2025
- Cancelled0.6%
- Legs flown under this number38
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 | 14 | ▼ 51.7% |
| February | 40 | 19 | ▼ 52.5% |
| March | 32 | 36 | ▲ 12.5% |
| April | 30 | 60 | ▲ 100.0% |
| May | 31 | 66 | ▲ 112.9% |
| June | 30 | 15 | ▼ 50.0% |
| July | 30 | 10 | ▼ 66.7% |
| August | 28 | – | – |
| September | 26 | – | – |
| October | 63 | – | in progress |
| November | 32 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 222 | 220 | ▼ 0.9% |
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% | 64.3% | ▼ 30.9% |
| February | 92.5% | 47.4% | ▼ 48.8% |
| March | 93.8% | 66.7% | ▼ 28.9% |
| April | 80.0% | 69.5% | ▼ 13.1% |
| May | 87.1% | 65.2% | ▼ 25.2% |
| June | 75.9% | 33.3% | ▼ 56.1% |
| July | 93.3% | 20.0% | ▼ 78.6% |
| August | 64.3% | – | – |
| September | 72.0% | – | – |
| October | 68.3% | – | in progress |
| November | 59.4% | – | – |
| December | 60.0% | – | – |
| Year-to-date average (Jan–Jul) | 87.9% | 52.3% | ▼ 40.5% |
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 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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 99.4% 717
- Cancelled 0.6% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 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 | 29 | 29 | 72.4% | 0 |
| November 2024 | 32 | 32 | 93.8% | 0 |
| December 2024 | 38 | 38 | 81.6% | 0 |
| January 2025 | 29 | 29 | 93.1% | 0 |
| February 2025 | 40 | 40 | 92.5% | 0 |
| March 2025 | 32 | 32 | 93.8% | 0 |
| April 2025 | 30 | 30 | 80.0% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 30 | 29 | 75.9% | 1 |
| July 2025 | 30 | 30 | 93.3% | 0 |
| August 2025 | 28 | 28 | 64.3% | 0 |
| September 2025 | 26 | 25 | 72.0% | 1 |
| October 2025 | 63 | 63 | 68.3% | 0 |
| November 2025 | 32 | 32 | 59.4% | 0 |
| December 2025 | 31 | 30 | 60.0% | 1 |
| January 2026 | 14 | 14 | 64.3% | 0 |
| February 2026 | 19 | 19 | 47.4% | 0 |
| March 2026 | 36 | 36 | 66.7% | 0 |
| April 2026 | 60 | 59 | 69.5% | 1 |
| May 2026 | 66 | 66 | 65.2% | 0 |
| June 2026 | 15 | 15 | 33.3% | 0 |
| July 2026 | 10 | 10 | 20.0% | 0 |