WN4005
WN4005 (Southwest Airlines) is a multi-stop service on 32 routes, busiest El Paso to Denver. Of 523 departures recorded from October 2024 to July 2026, 68.2% left on time, according to the US BTS.
- On-time departures68.2%of 523 flights
- Average delay18.5 min
- July 202631▼ 36.7%vs July 2025
- Cancelled1.3%
- Legs flown under this number32
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 | 26 | 7 | ▼ 73.1% |
| February | 53 | 8 | ▼ 84.9% |
| March | 13 | 5 | ▼ 61.5% |
| April | 24 | 15 | ▼ 37.5% |
| May | 31 | 19 | ▼ 38.7% |
| June | 44 | 28 | ▼ 36.4% |
| July | 49 | 31 | ▼ 36.7% |
| August | 6 | – | – |
| September | – | – | – |
| October | 4 | – | in progress |
| November | 30 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 240 | 113 | ▼ 52.9% |
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 | 72.0% | 85.7% | ▲ 19.0% |
| February | 62.3% | 85.7% | ▲ 37.7% |
| March | 84.6% | 20.0% | ▼ 76.4% |
| April | 87.5% | 33.3% | ▼ 61.9% |
| May | 70.0% | 36.8% | ▼ 47.4% |
| June | 77.3% | 64.3% | ▼ 16.8% |
| July | 66.7% | 51.6% | ▼ 22.6% |
| August | 40.0% | – | – |
| September | – | – | – |
| October | 75.0% | – | in progress |
| November | 51.7% | – | – |
| December | 53.9% | – | – |
| Year-to-date average (Jan–Jul) | 74.3% | 53.9% | ▼ 27.5% |
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 | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 98.7% 516
- Cancelled 1.3% 7
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ELP DEN El Paso International Airport – Denver International Airport | 908 | 7.4 min | 81.8% | 68 |
| LAS PHX Harry Reid International Airport – Phoenix Sky Harbor International Airport | 411 | 31.8 min | 59.0% | 61 |
| TPA BNA Tampa International Airport – Nashville International Airport | 987 | 23.3 min | 56.1% | 57 |
| IND MCO Indianapolis International Airport – Orlando International Airport | 1,336 | 6.6 min | 80.4% | 57 |
| RIC DEN Richmond International Airport – Denver International Airport | 2,379 | 31.2 min | 29.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 21 | 21 | 81.0% | 0 |
| November 2024 | 42 | 41 | 85.4% | 1 |
| December 2024 | 54 | 54 | 81.5% | 0 |
| January 2025 | 26 | 25 | 72.0% | 1 |
| February 2025 | 53 | 53 | 62.3% | 0 |
| March 2025 | 13 | 13 | 84.6% | 0 |
| April 2025 | 24 | 24 | 87.5% | 0 |
| May 2025 | 31 | 30 | 70.0% | 1 |
| June 2025 | 44 | 44 | 77.3% | 0 |
| July 2025 | 49 | 48 | 66.7% | 1 |
| August 2025 | 6 | 5 | 40.0% | 1 |
| October 2025 | 4 | 4 | 75.0% | 0 |
| November 2025 | 30 | 29 | 51.7% | 1 |
| December 2025 | 13 | 13 | 53.9% | 0 |
| January 2026 | 7 | 7 | 85.7% | 0 |
| February 2026 | 8 | 7 | 85.7% | 1 |
| March 2026 | 5 | 5 | 20.0% | 0 |
| April 2026 | 15 | 15 | 33.3% | 0 |
| May 2026 | 19 | 19 | 36.8% | 0 |
| June 2026 | 28 | 28 | 64.3% | 0 |
| July 2026 | 31 | 31 | 51.6% | 0 |