WN4254
WN4254 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Albuquerque to Las Vegas. Of 353 departures recorded from October 2024 to July 2026, 71.4% left on time, according to the US BTS.
- On-time departures71.4%of 353 flights
- Average delay15.2 min
- July 202618▲ 125.0%vs July 2025
- Cancelled1.1%
- Legs flown under this number20
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 23 | 8 | ▼ 65.2% |
| February | 11 | 27 | ▲ 145.5% |
| March | 11 | 7 | ▼ 36.4% |
| April | 22 | 15 | ▼ 31.8% |
| May | 26 | 17 | ▼ 34.6% |
| June | 12 | 18 | ▲ 50.0% |
| July | 8 | 18 | ▲ 125.0% |
| August | 2 | – | – |
| September | – | – | – |
| October | 4 | – | in progress |
| November | 25 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 113 | 110 | ▼ 2.7% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 86.4% | 62.5% | ▼ 27.6% |
| February | 81.8% | 84.6% | ▲ 3.4% |
| March | 36.4% | 71.4% | ▲ 96.5% |
| April | 72.7% | 86.7% | ▲ 19.2% |
| May | 73.1% | 70.6% | ▼ 3.4% |
| June | 58.3% | 61.1% | ▲ 4.8% |
| July | 50.0% | 61.1% | ▲ 22.2% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | 75.0% | – | in progress |
| November | 70.8% | – | – |
| December | 50.0% | – | – |
| Year-to-date average (Jan–Jul) | 65.5% | 71.1% | ▲ 8.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| 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 98.9% 349
- Cancelled 1.1% 4
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ABQ LAS Albuquerque International Sunport – Harry Reid International Airport | 781 | 5.4 min | 81.2% | 86 |
| SAT SAN San Antonio International Airport – San Diego International Airport | 1,814 | 17.1 min | 57.9% | 59 |
| LAS SAT Harry Reid International Airport – San Antonio International Airport | 1,718 | 19.4 min | 74.0% | 50 |
| BWI HOU Baltimore/Washington International Thurgood Marshall Airport – William P. Hobby Airport | 2,003 | 32.2 min | 58.8% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 87.5% | 0 |
| November 2024 | 26 | 26 | 88.5% | 0 |
| December 2024 | 28 | 28 | 71.4% | 0 |
| January 2025 | 23 | 22 | 86.4% | 1 |
| February 2025 | 11 | 11 | 81.8% | 0 |
| March 2025 | 11 | 11 | 36.4% | 0 |
| April 2025 | 22 | 22 | 72.7% | 0 |
| May 2025 | 26 | 26 | 73.1% | 0 |
| June 2025 | 12 | 12 | 58.3% | 0 |
| July 2025 | 8 | 8 | 50.0% | 0 |
| August 2025 | 2 | 2 | 50.0% | 0 |
| October 2025 | 4 | 4 | 75.0% | 0 |
| November 2025 | 25 | 24 | 70.8% | 1 |
| December 2025 | 29 | 28 | 50.0% | 1 |
| January 2026 | 8 | 8 | 62.5% | 0 |
| February 2026 | 27 | 26 | 84.6% | 1 |
| March 2026 | 7 | 7 | 71.4% | 0 |
| April 2026 | 15 | 15 | 86.7% | 0 |
| May 2026 | 17 | 17 | 70.6% | 0 |
| June 2026 | 18 | 18 | 61.1% | 0 |
| July 2026 | 18 | 18 | 61.1% | 0 |