WN2535
WN2535 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Colorado Springs to Las Vegas. Of 611 departures recorded from October 2024 to July 2026, 72.5% left on time, according to the US BTS.
- On-time departures72.5%of 611 flights
- Average delay14.6 min
- July 202623▼ 25.8%vs July 2025
- Cancelled0.2%
- Legs flown under this number28
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 | 31 | 52 | ▲ 67.7% |
| February | 28 | 38 | ▲ 35.7% |
| March | 31 | 14 | ▼ 54.8% |
| April | 21 | 23 | ▲ 9.5% |
| May | 17 | 26 | ▲ 52.9% |
| June | 29 | 23 | ▼ 20.7% |
| July | 31 | 23 | ▼ 25.8% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 43 | – | in progress |
| November | 31 | – | – |
| December | 40 | – | – |
| Year to date (Jan–Jul) | 188 | 199 | ▲ 5.9% |
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 | 96.8% | 80.8% | ▼ 16.5% |
| February | 89.3% | 86.8% | ▼ 2.7% |
| March | 83.9% | 42.9% | ▼ 48.9% |
| April | 81.0% | 95.7% | ▲ 18.2% |
| May | 76.5% | 88.5% | ▲ 15.7% |
| June | 44.8% | 39.1% | ▼ 12.7% |
| July | 51.6% | 34.8% | ▼ 32.6% |
| August | 40.0% | – | – |
| September | 58.8% | – | – |
| October | 72.1% | – | in progress |
| November | 64.5% | – | – |
| December | 65.0% | – | – |
| Year-to-date average (Jan–Jul) | 74.8% | 66.9% | ▼ 10.6% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 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) | 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 99.8% 610
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| COS LAS City of Colorado Springs Municipal Airport – Harry Reid International Airport | 970 | 2.8 min | 92.3% | 118 |
| HOU DEN William P. Hobby Airport – Denver International Airport | 1,422 | 36.5 min | 48.1% | 52 |
| LAS ATL Harry Reid International Airport – Hartsfield Jackson Atlanta International Airport | 2,805 | 1.7 min | 92.0% | 50 |
| MDW ALB Chicago Midway International Airport – Albany International Airport | 1,152 | 20.6 min | 62.2% | 45 |
| LAS OAK Harry Reid International Airport – Oakland San Francisco Bay Airport | 654 | 7.3 min | 80.0% | 45 |
| FLL DCA Fort Lauderdale Hollywood International Airport – Ronald Reagan Washington National Airport | 1,451 | 21.3 min | 32.4% | 34 |
| MDW BNA Chicago Midway International Airport – Nashville International Airport | 636 | 18.6 min | 75.8% | 33 |
| MCI DEN Kansas City International Airport – Denver International Airport | 855 | 29.3 min | 51.5% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 76.9% | 0 |
| November 2024 | 29 | 28 | 85.7% | 1 |
| December 2024 | 31 | 31 | 96.8% | 0 |
| January 2025 | 31 | 31 | 96.8% | 0 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 21 | 21 | 81.0% | 0 |
| May 2025 | 17 | 17 | 76.5% | 0 |
| June 2025 | 29 | 29 | 44.8% | 0 |
| July 2025 | 31 | 31 | 51.6% | 0 |
| August 2025 | 20 | 20 | 40.0% | 0 |
| September 2025 | 17 | 17 | 58.8% | 0 |
| October 2025 | 43 | 43 | 72.1% | 0 |
| November 2025 | 31 | 31 | 64.5% | 0 |
| December 2025 | 40 | 40 | 65.0% | 0 |
| January 2026 | 52 | 52 | 80.8% | 0 |
| February 2026 | 38 | 38 | 86.8% | 0 |
| March 2026 | 14 | 14 | 42.9% | 0 |
| April 2026 | 23 | 23 | 95.7% | 0 |
| May 2026 | 26 | 26 | 88.5% | 0 |
| June 2026 | 23 | 23 | 39.1% | 0 |
| July 2026 | 23 | 23 | 34.8% | 0 |