WN3954
WN3954 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Las Vegas to Portland. Of 350 departures recorded from October 2024 to May 2026, 71.2% left on time, according to the US BTS.
- On-time departures71.2%of 350 flights
- Average delay14.6 min
- May 20269▲ 0.0%vs May 2025
- Cancelled0.9%
- Legs flown under this number23
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 2 | ▼ 92.0% |
| February | 21 | – | – |
| March | 8 | 31 | ▲ 287.5% |
| April | 7 | 13 | ▲ 85.7% |
| May | 9 | 9 | 0.0% |
| June | 29 | – | – |
| July | 29 | – | – |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 52 | – | in progress |
| November | 18 | – | – |
| December | 6 | – | – |
according to the US BTS · October 2024 → May 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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 96.0% | 100.0% | ▲ 4.2% |
| February | 81.0% | – | – |
| March | 100.0% | 36.7% | ▼ 63.3% |
| April | 100.0% | 84.6% | ▼ 15.4% |
| May | 77.8% | 88.9% | ▲ 14.3% |
| June | 72.4% | – | – |
| July | 58.6% | – | – |
| August | 65.0% | – | – |
| September | 94.1% | – | – |
| October | 60.8% | – | in progress |
| November | 38.9% | – | – |
| December | 50.0% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | – | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → May 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 99.1% 347
- Cancelled 0.9% 3
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → May 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 PDX Harry Reid International Airport – Portland International Airport | 1,227 | 5.6 min | 87.1% | 62 |
| LAS LGB Harry Reid International Airport – Long Beach International Airport | 372 | 19.5 min | 63.9% | 36 |
| DEN GEG Denver International Airport – Spokane International Airport | 1,343 | 32.9 min | 46.9% | 33 |
| MDW PHL Chicago Midway International Airport – Philadelphia International Airport | 1,073 | 18.1 min | 67.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 13 | 13 | 92.3% | 0 |
| November 2024 | 15 | 15 | 80.0% | 0 |
| December 2024 | 26 | 25 | 80.0% | 1 |
| January 2025 | 25 | 25 | 96.0% | 0 |
| February 2025 | 21 | 21 | 81.0% | 0 |
| March 2025 | 8 | 8 | 100.0% | 0 |
| April 2025 | 7 | 7 | 100.0% | 0 |
| May 2025 | 9 | 9 | 77.8% | 0 |
| June 2025 | 29 | 29 | 72.4% | 0 |
| July 2025 | 29 | 29 | 58.6% | 0 |
| August 2025 | 20 | 20 | 65.0% | 0 |
| September 2025 | 17 | 17 | 94.1% | 0 |
| October 2025 | 52 | 51 | 60.8% | 1 |
| November 2025 | 18 | 18 | 38.9% | 0 |
| December 2025 | 6 | 6 | 50.0% | 0 |
| January 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 31 | 30 | 36.7% | 1 |
| April 2026 | 13 | 13 | 84.6% | 0 |
| May 2026 | 9 | 9 | 88.9% | 0 |