WN4582
WN4582 (Southwest Airlines) is a multi-stop service on 12 routes, busiest Las Vegas to Colorado Springs. Of 336 departures recorded from October 2024 to July 2026, 82.8% left on time, according to the US BTS.
- On-time departures82.8%of 336 flights
- Average delay5.6 min
- July 202644▲ 41.9%vs July 2025
- Cancelled1.5%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 26 | 2 | ▼ 92.3% |
| February | 24 | – | – |
| March | 8 | 4 | ▼ 50.0% |
| April | 18 | 1 | ▼ 94.4% |
| May | 22 | – | – |
| June | 29 | 39 | ▲ 34.5% |
| July | 31 | 44 | ▲ 41.9% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | 4 | – | in progress |
| November | 2 | – | – |
| December | 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 84.6% | 100.0% | ▲ 18.2% |
| February | 78.3% | – | – |
| March | 62.5% | 100.0% | ▲ 60.0% |
| April | 77.8% | 100.0% | ▲ 28.6% |
| May | 90.5% | – | – |
| June | 75.9% | 89.7% | ▲ 18.3% |
| July | 56.7% | 93.2% | ▲ 64.4% |
| August | 85.7% | – | – |
| September | 100.0% | – | – |
| October | 25.0% | – | in progress |
| November | 100.0% | – | – |
| December | 77.8% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | – | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 98.5% 331
- Cancelled 1.5% 5
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 |
|---|---|---|---|---|
| LAS COS Harry Reid International Airport – City of Colorado Springs Municipal Airport | 970 | 4.5 min | 85.3% | 98 |
| SMF SNA Sacramento International Airport – John Wayne Orange County International Airport | 650 | 10.7 min | 65.0% | 61 |
| SAT ELP San Antonio International Airport – El Paso International Airport | 797 | -0.5 min | 96.5% | 57 |
| STL LAX St. Louis Lambert International Airport – Los Angeles International Airport | 2,557 | 6.9 min | 87.8% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 87.5% | 0 |
| November 2024 | 25 | 23 | 91.3% | 2 |
| December 2024 | 21 | 21 | 90.5% | 0 |
| January 2025 | 26 | 26 | 84.6% | 0 |
| February 2025 | 24 | 23 | 78.3% | 1 |
| March 2025 | 8 | 8 | 62.5% | 0 |
| April 2025 | 18 | 18 | 77.8% | 0 |
| May 2025 | 22 | 21 | 90.5% | 1 |
| June 2025 | 29 | 29 | 75.9% | 0 |
| July 2025 | 31 | 30 | 56.7% | 1 |
| August 2025 | 7 | 7 | 85.7% | 0 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 4 | 4 | 25.0% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| December 2025 | 9 | 9 | 77.8% | 0 |
| January 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 4 | 4 | 100.0% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 39 | 39 | 89.7% | 0 |
| July 2026 | 44 | 44 | 93.2% | 0 |