WN4024
WN4024 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Portland to San Jose. Of 385 departures recorded from October 2024 to July 2026, 70.2% left on time, according to the US BTS.
- On-time departures70.2%of 385 flights
- Average delay16.9 min
- July 202650▲ 150.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number21
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 5 | ▲ 150.0% |
| February | 2 | 9 | ▲ 350.0% |
| March | 27 | 28 | ▲ 3.7% |
| April | 10 | 6 | ▼ 40.0% |
| May | 5 | – | – |
| June | 21 | 42 | ▲ 100.0% |
| July | 20 | 50 | ▲ 150.0% |
| August | 4 | – | – |
| September | – | – | – |
| October | 56 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 100.0% | 0.0% |
| February | 100.0% | 100.0% | 0.0% |
| March | 100.0% | 48.2% | ▼ 51.8% |
| April | 80.0% | 80.0% | 0.0% |
| May | 60.0% | – | – |
| June | 90.5% | 52.4% | ▼ 42.1% |
| July | 85.0% | 44.0% | ▼ 48.2% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 48.2% | – | in progress |
| November | 93.1% | – | – |
| December | 82.8% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 1 | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| 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 99.2% 382
- Cancelled 0.8% 3
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 |
|---|---|---|---|---|
| PDX SJC Portland International Airport – Mineta San Jose International Airport | 916 | 4.3 min | 88.3% | 60 |
| MEM DEN Frederick W. Smith International Airport – Denver International Airport | 1,401 | 35.6 min | 36.0% | 50 |
| MYR MDW Myrtle Beach International Airport – Chicago Midway International Airport | 1,188 | 5.2 min | 88.6% | 44 |
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | -4.0 min | 100.0% | 33 |
| MDW OMA Chicago Midway International Airport – Eppley Airfield | 679 | 43.1 min | 51.6% | 33 |
| SAN ABQ San Diego International Airport – Albuquerque International Sunport | 1,009 | 27.3 min | 53.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 82.4% | 0 |
| November 2024 | 9 | 9 | 100.0% | 0 |
| December 2024 | 14 | 14 | 78.6% | 0 |
| January 2025 | 2 | 2 | 100.0% | 0 |
| February 2025 | 2 | 2 | 100.0% | 0 |
| March 2025 | 27 | 26 | 100.0% | 1 |
| April 2025 | 10 | 10 | 80.0% | 0 |
| May 2025 | 5 | 5 | 60.0% | 0 |
| June 2025 | 21 | 21 | 90.5% | 0 |
| July 2025 | 20 | 20 | 85.0% | 0 |
| August 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 56 | 56 | 48.2% | 0 |
| November 2025 | 29 | 29 | 93.1% | 0 |
| December 2025 | 29 | 29 | 82.8% | 0 |
| January 2026 | 5 | 5 | 100.0% | 0 |
| February 2026 | 9 | 9 | 100.0% | 0 |
| March 2026 | 28 | 27 | 48.2% | 1 |
| April 2026 | 6 | 5 | 80.0% | 1 |
| June 2026 | 42 | 42 | 52.4% | 0 |
| July 2026 | 50 | 50 | 44.0% | 0 |