WN1100
WN1100 (Southwest Airlines) is a multi-stop service on 50 routes, busiest Salt Lake City to Las Vegas. Of 686 departures recorded from October 2024 to July 2026, 75.8% left on time, according to the US BTS.
- On-time departures75.8%of 686 flights
- Average delay14.5 min
- July 202632▲ 0.0%vs July 2025
- Cancelled0.6%
- Legs flown under this number50
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 | 47 | 28 | ▼ 40.4% |
| February | 36 | 27 | ▼ 25.0% |
| March | 32 | 31 | ▼ 3.1% |
| April | 46 | 33 | ▼ 28.3% |
| May | 47 | 35 | ▼ 25.5% |
| June | 33 | 22 | ▼ 33.3% |
| July | 32 | 32 | 0.0% |
| August | 15 | – | – |
| September | 13 | – | – |
| October | 24 | – | in progress |
| November | 31 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 273 | 208 | ▼ 23.8% |
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 | 80.4% | 77.8% | ▼ 3.3% |
| February | 72.2% | 55.6% | ▼ 23.1% |
| March | 84.4% | 64.5% | ▼ 23.5% |
| April | 84.8% | 97.0% | ▲ 14.4% |
| May | 87.2% | 85.7% | ▼ 1.7% |
| June | 57.6% | 59.1% | ▲ 2.6% |
| July | 67.7% | 51.6% | ▼ 23.8% |
| August | 86.7% | – | – |
| September | 76.9% | – | – |
| October | 91.7% | – | in progress |
| November | 87.1% | – | – |
| December | 84.9% | – | – |
| Year-to-date average (Jan–Jul) | 76.3% | 70.2% | ▼ 8.1% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 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 99.4% 682
- Cancelled 0.6% 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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SLC LAS Salt Lake City International Airport – Harry Reid International Airport | 592 | 0.6 min | 96.6% | 58 |
| DEN BNA Denver International Airport – Nashville International Airport | 1,628 | 2.7 min | 93.0% | 57 |
| CLT MDW Charlotte Douglas International Airport – Chicago Midway International Airport | 940 | 15.9 min | 65.4% | 53 |
| SEA MDW Seattle–Tacoma International Airport – Chicago Midway International Airport | 2,782 | 1.2 min | 95.7% | 46 |
| STL DCA St. Louis Lambert International Airport – Ronald Reagan Washington National Airport | 1,154 | 19.7 min | 69.7% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 22 | 22 | 77.3% | 0 |
| November 2024 | 22 | 22 | 86.4% | 0 |
| December 2024 | 45 | 45 | 53.3% | 0 |
| January 2025 | 47 | 46 | 80.4% | 1 |
| February 2025 | 36 | 36 | 72.2% | 0 |
| March 2025 | 32 | 32 | 84.4% | 0 |
| April 2025 | 46 | 46 | 84.8% | 0 |
| May 2025 | 47 | 47 | 87.2% | 0 |
| June 2025 | 33 | 33 | 57.6% | 0 |
| July 2025 | 32 | 31 | 67.7% | 1 |
| August 2025 | 15 | 15 | 86.7% | 0 |
| September 2025 | 13 | 13 | 76.9% | 0 |
| October 2025 | 24 | 24 | 91.7% | 0 |
| November 2025 | 31 | 31 | 87.1% | 0 |
| December 2025 | 33 | 33 | 84.9% | 0 |
| January 2026 | 28 | 27 | 77.8% | 1 |
| February 2026 | 27 | 27 | 55.6% | 0 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 33 | 33 | 97.0% | 0 |
| May 2026 | 35 | 35 | 85.7% | 0 |
| June 2026 | 22 | 22 | 59.1% | 0 |
| July 2026 | 32 | 31 | 51.6% | 1 |