WN4042
WN4042 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Phoenix to Albuquerque. Of 254 departures recorded from October 2024 to July 2026, 72.8% left on time, according to the US BTS.
- On-time departures72.8%of 254 flights
- Average delay18.1 min
- July 202625
- Cancelled1.6%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 6 | ▲ 100.0% |
| February | 2 | 2 | 0.0% |
| March | 23 | 4 | ▼ 82.6% |
| April | 6 | 4 | ▼ 33.3% |
| May | – | 5 | – |
| June | – | 24 | – |
| July | – | 25 | – |
| August | 4 | – | – |
| September | 4 | – | – |
| October | 34 | – | in progress |
| November | 33 | – | – |
| December | 21 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 66.7% | 83.3% | ▲ 25.0% |
| February | 50.0% | 100.0% | ▲ 100.0% |
| March | 68.2% | 50.0% | ▼ 26.7% |
| April | 83.3% | 100.0% | ▲ 20.0% |
| May | – | 100.0% | – |
| June | – | 50.0% | – |
| July | – | 58.3% | – |
| August | 75.0% | – | – |
| September | 75.0% | – | – |
| October | 91.2% | – | in progress |
| November | 48.5% | – | – |
| December | 70.0% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | – | 0 | – |
| July | – | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
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 98.4% 250
- Cancelled 1.6% 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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHX ABQ Phoenix Sky Harbor International Airport – Albuquerque International Sunport | 527 | 19.7 min | 57.1% | 35 |
| MDW OAK Chicago Midway International Airport – Oakland San Francisco Bay Airport | 2,961 | 45.7 min | 36.4% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 84.6% | 0 |
| November 2024 | 23 | 22 | 95.5% | 1 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| February 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 23 | 22 | 68.2% | 1 |
| April 2025 | 6 | 6 | 83.3% | 0 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| September 2025 | 4 | 4 | 75.0% | 0 |
| October 2025 | 34 | 34 | 91.2% | 0 |
| November 2025 | 33 | 33 | 48.5% | 0 |
| December 2025 | 21 | 20 | 70.0% | 1 |
| January 2026 | 6 | 6 | 83.3% | 0 |
| February 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 4 | 4 | 50.0% | 0 |
| April 2026 | 4 | 4 | 100.0% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |
| June 2026 | 24 | 24 | 50.0% | 0 |
| July 2026 | 25 | 24 | 58.3% | 1 |