WN4830
WN4830 (Southwest Airlines) is a multi-stop service on 8 routes, busiest San Jose to Los Angeles. Of 329 departures recorded from October 2024 to July 2026, 76.1% left on time, according to the US BTS.
- On-time departures76.1%of 329 flights
- Average delay13.0 min
- July 202622
- Cancelled0.9%
- Legs flown under this number8
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods13 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 29 | 26 | ▼ 10.3% |
| February | 26 | 28 | ▲ 7.7% |
| March | 4 | 4 | 0.0% |
| April | 23 | – | – |
| May | 31 | – | – |
| June | 4 | 27 | ▲ 575.0% |
| July | – | 22 | – |
| August | – | – | – |
| September | – | – | – |
| October | 21 | – | in progress |
| November | 2 | – | – |
| December | – | – | – |
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 periods13 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 96.6% | 56.0% | ▼ 42.0% |
| February | 92.3% | 57.7% | ▼ 37.5% |
| March | 100.0% | 50.0% | ▼ 50.0% |
| April | 87.0% | – | – |
| May | 64.5% | – | – |
| June | 100.0% | 40.7% | ▼ 59.3% |
| July | – | 40.9% | – |
| August | – | – | – |
| September | – | – | – |
| October | 95.2% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
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 periods13 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | – | – |
| May | 0 | – | – |
| June | 0 | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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 99.1% 326
- Cancelled 0.9% 3
Share of all recorded flights in the period, all legs. · Oct 12, 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 |
|---|---|---|---|---|
| SJC LAX Mineta San Jose International Airport – Los Angeles International Airport | 496 | 1.0 min | 94.1% | 101 |
| MCO PHL Orlando International Airport – Philadelphia International Airport | 1,389 | 23.3 min | 56.4% | 58 |
| BNA LGA Nashville International Airport – LaGuardia Airport | 1,228 | 11.9 min | 75.9% | 58 |
| MCO BNA Orlando International Airport – Nashville International Airport | 993 | 41.4 min | 40.8% | 49 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 38 | 38 | 86.8% | 0 |
| December 2024 | 24 | 24 | 95.8% | 0 |
| January 2025 | 29 | 29 | 96.6% | 0 |
| February 2025 | 26 | 26 | 92.3% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 23 | 23 | 87.0% | 0 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 21 | 21 | 95.2% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 26 | 25 | 56.0% | 1 |
| February 2026 | 28 | 26 | 57.7% | 2 |
| March 2026 | 4 | 4 | 50.0% | 0 |
| June 2026 | 27 | 27 | 40.7% | 0 |
| July 2026 | 22 | 22 | 40.9% | 0 |