WN4098
WN4098 (Southwest Airlines) is a multi-stop service on 12 routes, busiest Portland to Las Vegas. Of 284 departures recorded from October 2024 to July 2026, 63.4% left on time, according to the US BTS.
- On-time departures63.4%of 284 flights
- Average delay23.8 min
- July 20264
- Cancelled1.1%
- Legs flown under this number12
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 1 | ▼ 96.4% |
| February | 24 | 3 | ▼ 87.5% |
| March | 30 | – | – |
| April | 27 | 16 | ▼ 40.7% |
| May | 25 | 22 | ▼ 12.0% |
| June | 4 | 5 | ▲ 25.0% |
| July | – | 4 | – |
| August | – | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 2 | – | – |
| December | 2 | – | – |
according to the US BTS · October 2024 → July 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 periods14 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 78.6% | – | – |
| February | 75.0% | 100.0% | ▲ 33.3% |
| March | 73.3% | – | – |
| April | 53.9% | 43.8% | ▼ 18.8% |
| May | 33.3% | 50.0% | ▲ 50.0% |
| June | 0.0% | 40.0% | – |
| July | – | 75.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | 65.4% | – | in progress |
| November | 100.0% | – | – |
| December | 0.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | – | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 98.9% 281
- Cancelled 1.1% 3
Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 25, 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 |
|---|---|---|---|---|
| PDX LAS Portland International Airport – Harry Reid International Airport | 1,227 | 15.2 min | 75.9% | 108 |
| MDW DEN Chicago Midway International Airport – Denver International Airport | 1,438 | 49.9 min | 40.4% | 49 |
| SAN OAK San Diego International Airport – Oakland San Francisco Bay Airport | 718 | 25.2 min | 48.7% | 39 |
| DEN BDL Denver International Airport – Bradley International Airport | 2,683 | 26.5 min | 63.6% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 100.0% | 0 |
| November 2024 | 27 | 27 | 66.7% | 0 |
| December 2024 | 32 | 32 | 78.1% | 0 |
| January 2025 | 28 | 28 | 78.6% | 0 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 30 | 30 | 73.3% | 0 |
| April 2025 | 27 | 26 | 53.9% | 1 |
| May 2025 | 25 | 24 | 33.3% | 1 |
| June 2025 | 4 | 4 | 0.0% | 0 |
| October 2025 | 26 | 26 | 65.4% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| December 2025 | 2 | 2 | 0.0% | 0 |
| January 2026 | 1 | 0 | — | 1 |
| February 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 16 | 16 | 43.8% | 0 |
| May 2026 | 22 | 22 | 50.0% | 0 |
| June 2026 | 5 | 5 | 40.0% | 0 |
| July 2026 | 4 | 4 | 75.0% | 0 |