WN2439
WN2439 (Southwest Airlines) is a multi-stop service on 28 routes, busiest San Jose to Burbank. Of 636 departures recorded from October 2024 to July 2026, 79.6% left on time, according to the US BTS.
- On-time departures79.6%of 636 flights
- Average delay11.0 min
- July 202610▼ 66.7%vs July 2025
- Cancelled0.6%
- Legs flown under this number28
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 | 30 | 25 | ▼ 16.7% |
| February | 26 | 16 | ▼ 38.5% |
| March | 20 | 26 | ▲ 30.0% |
| April | 33 | 29 | ▼ 12.1% |
| May | 37 | 31 | ▼ 16.2% |
| June | 32 | 10 | ▼ 68.8% |
| July | 30 | 10 | ▼ 66.7% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 57 | – | in progress |
| November | 42 | – | – |
| December | 44 | – | – |
| Year to date (Jan–Jul) | 208 | 147 | ▼ 29.3% |
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 | 96.7% | 92.0% | ▼ 4.8% |
| February | 96.0% | 66.7% | ▼ 30.6% |
| March | 100.0% | 53.9% | ▼ 46.2% |
| April | 75.8% | 89.7% | ▲ 18.3% |
| May | 48.7% | 93.6% | ▲ 92.3% |
| June | 62.5% | 70.0% | ▲ 12.0% |
| July | 66.7% | 50.0% | ▼ 25.0% |
| August | 92.6% | – | – |
| September | 96.2% | – | – |
| October | 73.7% | – | in progress |
| November | 75.6% | – | – |
| December | 88.6% | – | – |
| Year-to-date average (Jan–Jul) | 78.0% | 73.7% | ▼ 5.6% |
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 | 1 | 1 | 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 | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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 99.4% 632
- Cancelled 0.6% 4
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SJC BUR Mineta San Jose International Airport – Hollywood Burbank/Bob Hope Airport | 477 | 2.9 min | 90.3% | 115 |
| IAD DEN Washington Dulles International Airport – Denver International Airport | 2,332 | 2.8 min | 93.1% | 58 |
| BOS BWI Boston Logan International Airport – Baltimore/Washington International Thurgood Marshall Airport | 594 | 32.4 min | 56.9% | 58 |
| MDW DAL Chicago Midway International Airport – Dallas Love Field | 1,277 | 5.9 min | 84.1% | 45 |
| SMF DAL Sacramento International Airport – Dallas Love Field | 2,317 | 26.8 min | 66.7% | 42 |
| DEN HOU Denver International Airport – William P. Hobby Airport | 1,422 | 3.2 min | 96.9% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 84.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 30 | 29 | 75.9% | 1 |
| January 2025 | 30 | 30 | 96.7% | 0 |
| February 2025 | 26 | 25 | 96.0% | 1 |
| March 2025 | 20 | 20 | 100.0% | 0 |
| April 2025 | 33 | 33 | 75.8% | 0 |
| May 2025 | 37 | 37 | 48.7% | 0 |
| June 2025 | 32 | 32 | 62.5% | 0 |
| July 2025 | 30 | 30 | 66.7% | 0 |
| August 2025 | 27 | 27 | 92.6% | 0 |
| September 2025 | 26 | 26 | 96.2% | 0 |
| October 2025 | 57 | 57 | 73.7% | 0 |
| November 2025 | 42 | 41 | 75.6% | 1 |
| December 2025 | 44 | 44 | 88.6% | 0 |
| January 2026 | 25 | 25 | 92.0% | 0 |
| February 2026 | 16 | 15 | 66.7% | 1 |
| March 2026 | 26 | 26 | 53.9% | 0 |
| April 2026 | 29 | 29 | 89.7% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 10 | 10 | 70.0% | 0 |
| July 2026 | 10 | 10 | 50.0% | 0 |