WN1504
WN1504 (Southwest Airlines) is a multi-stop service on 32 routes, busiest San Jose to Las Vegas. Of 647 departures recorded from October 2024 to July 2026, 82.2% left on time, according to the US BTS.
- On-time departures82.2%of 647 flights
- Average delay8.4 min
- July 20268▼ 81.4%vs July 2025
- Cancelled0.3%
- Legs flown under this number32
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 | 37 | 28 | ▼ 24.3% |
| February | 43 | 17 | ▼ 60.5% |
| March | 33 | 37 | ▲ 12.1% |
| April | 30 | 31 | ▲ 3.3% |
| May | 31 | 31 | 0.0% |
| June | 42 | 11 | ▼ 73.8% |
| July | 43 | 8 | ▼ 81.4% |
| August | 22 | – | – |
| September | 17 | – | – |
| October | 34 | – | in progress |
| November | 42 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 259 | 163 | ▼ 37.1% |
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 | 88.9% | 75.0% | ▼ 15.6% |
| February | 95.4% | 82.4% | ▼ 13.6% |
| March | 90.9% | 56.8% | ▼ 37.6% |
| April | 79.3% | 93.6% | ▲ 18.0% |
| May | 83.9% | 90.3% | ▲ 7.7% |
| June | 64.3% | 81.8% | ▲ 27.3% |
| July | 62.8% | 62.5% | ▼ 0.5% |
| August | 95.5% | – | – |
| September | 94.1% | – | – |
| October | 85.3% | – | in progress |
| November | 83.3% | – | – |
| December | 84.4% | – | – |
| Year-to-date average (Jan–Jul) | 80.8% | 77.5% | ▼ 4.1% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| 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) | 2 | 0 | ▼ 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 99.7% 645
- Cancelled 0.3% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 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 | 14 | 14 | 92.9% | 0 |
| November 2024 | 17 | 17 | 94.1% | 0 |
| December 2024 | 34 | 34 | 85.3% | 0 |
| January 2025 | 37 | 36 | 88.9% | 1 |
| February 2025 | 43 | 43 | 95.4% | 0 |
| March 2025 | 33 | 33 | 90.9% | 0 |
| April 2025 | 30 | 29 | 79.3% | 1 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 42 | 42 | 64.3% | 0 |
| July 2025 | 43 | 43 | 62.8% | 0 |
| August 2025 | 22 | 22 | 95.5% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 34 | 34 | 85.3% | 0 |
| November 2025 | 42 | 42 | 83.3% | 0 |
| December 2025 | 45 | 45 | 84.4% | 0 |
| January 2026 | 28 | 28 | 75.0% | 0 |
| February 2026 | 17 | 17 | 82.4% | 0 |
| March 2026 | 37 | 37 | 56.8% | 0 |
| April 2026 | 31 | 31 | 93.6% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 11 | 11 | 81.8% | 0 |
| July 2026 | 8 | 8 | 62.5% | 0 |