WN1187
WN1187 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Colorado Springs to Denver. Of 727 departures recorded from October 2024 to July 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 727 flights
- Average delay10.0 min
- July 202631▼ 34.0%vs July 2025
- Cancelled0.8%
- 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 | 59 | 33 | ▼ 44.1% |
| February | 44 | 25 | ▼ 43.2% |
| March | 35 | 31 | ▼ 11.4% |
| April | 30 | 24 | ▼ 20.0% |
| May | 31 | 22 | ▼ 29.0% |
| June | 46 | 30 | ▼ 34.8% |
| July | 47 | 31 | ▼ 34.0% |
| August | 34 | – | – |
| September | 30 | – | – |
| October | 6 | – | in progress |
| November | 48 | – | – |
| December | 59 | – | – |
| Year to date (Jan–Jul) | 292 | 196 | ▼ 32.9% |
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 | 80.7% | 86.7% | ▲ 7.4% |
| February | 88.6% | 100.0% | ▲ 12.8% |
| March | 88.6% | 96.7% | ▲ 9.1% |
| April | 90.0% | 91.7% | ▲ 1.9% |
| May | 96.8% | 86.4% | ▼ 10.8% |
| June | 43.5% | 70.0% | ▲ 61.0% |
| July | 36.2% | 96.8% | ▲ 167.5% |
| August | 58.8% | – | – |
| September | 66.7% | – | – |
| October | 50.0% | – | in progress |
| November | 95.8% | – | – |
| December | 93.2% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 89.7% | ▲ 19.8% |
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 | 2 | 3 | ▲ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| 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) | 2 | 4 | ▲ 100.0% |
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 99.2% 721
- Cancelled 0.8% 6
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
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 33 | 33 | 84.9% | 0 |
| November 2024 | 19 | 19 | 94.7% | 0 |
| December 2024 | 10 | 10 | 100.0% | 0 |
| January 2025 | 59 | 57 | 80.7% | 2 |
| February 2025 | 44 | 44 | 88.6% | 0 |
| March 2025 | 35 | 35 | 88.6% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 46 | 46 | 43.5% | 0 |
| July 2025 | 47 | 47 | 36.2% | 0 |
| August 2025 | 34 | 34 | 58.8% | 0 |
| September 2025 | 30 | 30 | 66.7% | 0 |
| October 2025 | 6 | 6 | 50.0% | 0 |
| November 2025 | 48 | 48 | 95.8% | 0 |
| December 2025 | 59 | 59 | 93.2% | 0 |
| January 2026 | 33 | 30 | 86.7% | 3 |
| February 2026 | 25 | 25 | 100.0% | 0 |
| March 2026 | 31 | 30 | 96.7% | 1 |
| April 2026 | 24 | 24 | 91.7% | 0 |
| May 2026 | 22 | 22 | 86.4% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |