WN3623
WN3623 (Southwest Airlines) is a multi-stop service on 19 routes, busiest San Diego to Sacramento. Of 346 departures recorded from October 2024 to July 2026, 75.4% left on time, according to the US BTS.
- On-time departures75.4%of 346 flights
- Average delay12.1 min
- July 202617▼ 45.2%vs July 2025
- Cancelled0.3%
- Legs flown under this number19
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 9 | ▲ 200.0% |
| February | – | 16 | – |
| March | 14 | 12 | ▼ 14.3% |
| April | 16 | 26 | ▲ 62.5% |
| May | 17 | 30 | ▲ 76.5% |
| June | 28 | 19 | ▼ 32.1% |
| July | 31 | 17 | ▼ 45.2% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 19 | – | in progress |
| November | 3 | – | – |
| 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 66.7% | 44.4% | ▼ 33.3% |
| February | – | 62.5% | – |
| March | 78.6% | 75.0% | ▼ 4.5% |
| April | 75.0% | 69.2% | ▼ 7.7% |
| May | 35.3% | 73.3% | ▲ 107.8% |
| June | 89.3% | 36.8% | ▼ 58.7% |
| July | 90.3% | 58.8% | ▼ 34.9% |
| August | 92.6% | – | – |
| September | 96.2% | – | – |
| October | 100.0% | – | in progress |
| November | 66.7% | – | – |
| December | 100.0% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| 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 99.7% 345
- Cancelled 0.3% 1
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 12.0 min | 71.9% | 57 |
| MCI DCA Kansas City International Airport – Ronald Reagan Washington National Airport | 1,524 | 1.2 min | 90.4% | 52 |
| SJC DEN Mineta San Jose International Airport – Denver International Airport | 1,522 | -1.1 min | 95.9% | 49 |
| ONT SJC Ontario International Airport – Mineta San Jose International Airport | 536 | 35.5 min | 48.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 15 | 66.7% | 1 |
| November 2024 | 5 | 5 | 80.0% | 0 |
| December 2024 | 10 | 10 | 90.0% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| March 2025 | 14 | 14 | 78.6% | 0 |
| April 2025 | 16 | 16 | 75.0% | 0 |
| May 2025 | 17 | 17 | 35.3% | 0 |
| June 2025 | 28 | 28 | 89.3% | 0 |
| July 2025 | 31 | 31 | 90.3% | 0 |
| August 2025 | 27 | 27 | 92.6% | 0 |
| September 2025 | 26 | 26 | 96.2% | 0 |
| October 2025 | 19 | 19 | 100.0% | 0 |
| November 2025 | 3 | 3 | 66.7% | 0 |
| December 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 9 | 9 | 44.4% | 0 |
| February 2026 | 16 | 16 | 62.5% | 0 |
| March 2026 | 12 | 12 | 75.0% | 0 |
| April 2026 | 26 | 26 | 69.2% | 0 |
| May 2026 | 30 | 30 | 73.3% | 0 |
| June 2026 | 19 | 19 | 36.8% | 0 |
| July 2026 | 17 | 17 | 58.8% | 0 |