WN1157
WN1157 (Southwest Airlines) is a multi-stop service on 36 routes, busiest Las Vegas to Los Angeles. Of 627 departures recorded from October 2024 to July 2026, 75.1% left on time, according to the US BTS.
- On-time departures75.1%of 627 flights
- Average delay14.4 min
- July 202631▲ 72.2%vs July 2025
- Cancelled0.6%
- Legs flown under this number36
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 | 33 | 13 | ▼ 60.6% |
| February | 42 | 16 | ▼ 61.9% |
| March | 33 | 29 | ▼ 12.1% |
| April | 38 | 42 | ▲ 10.5% |
| May | 39 | 43 | ▲ 10.3% |
| June | 20 | 33 | ▲ 65.0% |
| July | 18 | 31 | ▲ 72.2% |
| August | 28 | – | – |
| September | 30 | – | – |
| October | 14 | – | in progress |
| November | 18 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 223 | 207 | ▼ 7.2% |
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 | 93.8% | 61.5% | ▼ 34.4% |
| February | 81.0% | 75.0% | ▼ 7.4% |
| March | 75.8% | 44.8% | ▼ 40.8% |
| April | 65.8% | 85.7% | ▲ 30.3% |
| May | 59.0% | 88.4% | ▲ 49.9% |
| June | 80.0% | 32.3% | ▼ 59.7% |
| July | 83.3% | 40.0% | ▼ 52.0% |
| August | 78.6% | – | – |
| September | 86.7% | – | – |
| October | 78.6% | – | in progress |
| November | 72.2% | – | – |
| December | 74.1% | – | – |
| Year-to-date average (Jan–Jul) | 76.9% | 61.1% | ▼ 20.6% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 2 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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% 623
- Cancelled 0.6% 4
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAS LAX Harry Reid International Airport – Los Angeles International Airport | 380 | 0.8 min | 91.6% | 84 |
| MDW DCA Chicago Midway International Airport – Ronald Reagan Washington National Airport | 964 | 54.7 min | 29.6% | 57 |
| MSY MCO Louis Armstrong New Orleans International Airport – Orlando International Airport | 886 | 32.8 min | 52.4% | 42 |
| BNA MDW Nashville International Airport – Chicago Midway International Airport | 636 | 6.7 min | 78.6% | 42 |
| BNA BHM Nashville International Airport – Birmingham-Shuttlesworth International Airport | 285 | 2.3 min | 85.7% | 42 |
| IND TPA Indianapolis International Airport – Tampa International Airport | 1,351 | 9.9 min | 85.3% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 100.0% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 26 | 26 | 100.0% | 0 |
| January 2025 | 33 | 32 | 93.8% | 1 |
| February 2025 | 42 | 42 | 81.0% | 0 |
| March 2025 | 33 | 33 | 75.8% | 0 |
| April 2025 | 38 | 38 | 65.8% | 0 |
| May 2025 | 39 | 39 | 59.0% | 0 |
| June 2025 | 20 | 20 | 80.0% | 0 |
| July 2025 | 18 | 18 | 83.3% | 0 |
| August 2025 | 28 | 28 | 78.6% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 14 | 14 | 78.6% | 0 |
| November 2025 | 18 | 18 | 72.2% | 0 |
| December 2025 | 27 | 27 | 74.1% | 0 |
| January 2026 | 13 | 13 | 61.5% | 0 |
| February 2026 | 16 | 16 | 75.0% | 0 |
| March 2026 | 29 | 29 | 44.8% | 0 |
| April 2026 | 42 | 42 | 85.7% | 0 |
| May 2026 | 43 | 43 | 88.4% | 0 |
| June 2026 | 33 | 31 | 32.3% | 2 |
| July 2026 | 31 | 30 | 40.0% | 1 |