WN4314
WN4314 (Southwest Airlines) is a multi-stop service on 17 routes, busiest San Jose to Burbank. Of 341 departures recorded from January 2025 to July 2026, 78.9% left on time, according to the US BTS.
- On-time departures78.9%of 341 flights
- Average delay10.5 min
- July 202613▲ 225.0%vs July 2025
- Cancelled0.0%
- Legs flown under this number17
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 | 5 | 5 | 0.0% |
| February | 7 | 1 | ▼ 85.7% |
| March | 23 | 4 | ▼ 82.6% |
| April | 35 | 22 | ▼ 37.1% |
| May | 38 | 26 | ▼ 31.6% |
| June | 10 | 14 | ▲ 40.0% |
| July | 4 | 13 | ▲ 225.0% |
| August | 20 | – | – |
| September | 22 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 122 | 85 | ▼ 30.3% |
according to the US BTS · January 2025 → 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 | 100.0% | 100.0% | 0.0% |
| February | 100.0% | 0.0% | ▼ 100.0% |
| March | 78.3% | 50.0% | ▼ 36.1% |
| April | 71.4% | 100.0% | ▲ 40.0% |
| May | 71.1% | 80.8% | ▲ 13.7% |
| June | 50.0% | 50.0% | 0.0% |
| July | 0.0% | 61.5% | – |
| August | 75.0% | – | – |
| September | 90.9% | – | – |
| October | 93.6% | – | in progress |
| November | 86.7% | – | – |
| December | 87.1% | – | – |
| Year-to-date average (Jan–Jul) | 67.2% | 63.2% | ▼ 6.0% |
according to the US BTS · January 2025 → July 2026
Average departure delay by month
according to the US BTS · January 2025 → 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 | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 0 |
according to the US BTS · January 2025 → 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 100.0% 341
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Jan 12, 2025 → Jul 29, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SJC BUR Mineta San Jose International Airport – Hollywood Burbank/Bob Hope Airport | 477 | 5.0 min | 87.5% | 64 |
| SMF BNA Sacramento International Airport – Nashville International Airport | 3,078 | 4.0 min | 88.0% | 50 |
| SLC DEN Salt Lake City International Airport – Denver International Airport | 628 | 7.1 min | 85.7% | 42 |
| BNA BUF Nashville International Airport – Buffalo Niagara International Airport | 1,018 | 7.7 min | 78.8% | 33 |
| RDU STL Raleigh-Durham International Airport – St. Louis Lambert International Airport | 1,072 | 0.3 min | 93.6% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| January 2025 | 5 | 5 | 100.0% | 0 |
| February 2025 | 7 | 7 | 100.0% | 0 |
| March 2025 | 23 | 23 | 78.3% | 0 |
| April 2025 | 35 | 35 | 71.4% | 0 |
| May 2025 | 38 | 38 | 71.1% | 0 |
| June 2025 | 10 | 10 | 50.0% | 0 |
| July 2025 | 4 | 4 | 0.0% | 0 |
| August 2025 | 20 | 20 | 75.0% | 0 |
| September 2025 | 22 | 22 | 90.9% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 30 | 30 | 86.7% | 0 |
| December 2025 | 31 | 31 | 87.1% | 0 |
| January 2026 | 5 | 5 | 100.0% | 0 |
| February 2026 | 1 | 1 | 0.0% | 0 |
| March 2026 | 4 | 4 | 50.0% | 0 |
| April 2026 | 22 | 22 | 100.0% | 0 |
| May 2026 | 26 | 26 | 80.8% | 0 |
| June 2026 | 14 | 14 | 50.0% | 0 |
| July 2026 | 13 | 13 | 61.5% | 0 |