WN3403
WN3403 (Southwest Airlines) is a multi-stop service on 30 routes, busiest Los Angeles to San Francisco. Of 596 departures recorded from October 2024 to July 2026, 71.4% left on time, according to the US BTS.
- On-time departures71.4%of 596 flights
- Average delay16.9 min
- July 202612▼ 62.5%vs July 2025
- Cancelled0.3%
- Legs flown under this number30
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 | 44 | 9 | ▼ 79.5% |
| February | 43 | 11 | ▼ 74.4% |
| March | 11 | 39 | ▲ 254.5% |
| April | 24 | 50 | ▲ 108.3% |
| May | 23 | 57 | ▲ 147.8% |
| June | 28 | 14 | ▼ 50.0% |
| July | 32 | 12 | ▼ 62.5% |
| August | 36 | – | – |
| September | 34 | – | – |
| October | 35 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 205 | 192 | ▼ 6.3% |
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 | 95.5% | 66.7% | ▼ 30.2% |
| February | 86.1% | 72.7% | ▼ 15.5% |
| March | 72.7% | 94.9% | ▲ 30.4% |
| April | 83.3% | 66.0% | ▼ 20.8% |
| May | 63.6% | 61.4% | ▼ 3.5% |
| June | 64.3% | 28.6% | ▼ 55.6% |
| July | 62.5% | 16.7% | ▼ 73.3% |
| August | 72.2% | – | – |
| September | 88.2% | – | – |
| October | 88.6% | – | in progress |
| November | 48.3% | – | – |
| December | 51.6% | – | – |
| Year-to-date average (Jan–Jul) | 75.4% | 58.1% | ▼ 22.9% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 0 | ▼ 100.0% |
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% 594
- Cancelled 0.3% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 77.8% | 0 |
| November 2024 | 5 | 5 | 100.0% | 0 |
| December 2024 | 10 | 10 | 40.0% | 0 |
| January 2025 | 44 | 44 | 95.5% | 0 |
| February 2025 | 43 | 43 | 86.1% | 0 |
| March 2025 | 11 | 11 | 72.7% | 0 |
| April 2025 | 24 | 24 | 83.3% | 0 |
| May 2025 | 23 | 22 | 63.6% | 1 |
| June 2025 | 28 | 28 | 64.3% | 0 |
| July 2025 | 32 | 32 | 62.5% | 0 |
| August 2025 | 36 | 36 | 72.2% | 0 |
| September 2025 | 34 | 34 | 88.2% | 0 |
| October 2025 | 35 | 35 | 88.6% | 0 |
| November 2025 | 30 | 29 | 48.3% | 1 |
| December 2025 | 31 | 31 | 51.6% | 0 |
| January 2026 | 9 | 9 | 66.7% | 0 |
| February 2026 | 11 | 11 | 72.7% | 0 |
| March 2026 | 39 | 39 | 94.9% | 0 |
| April 2026 | 50 | 50 | 66.0% | 0 |
| May 2026 | 57 | 57 | 61.4% | 0 |
| June 2026 | 14 | 14 | 28.6% | 0 |
| July 2026 | 12 | 12 | 16.7% | 0 |