WN781
WN781 (Southwest Airlines) is a multi-stop service on 45 routes, busiest Chicago to San Jose. Of 725 departures recorded from October 2024 to July 2026, 83.1% left on time, according to the US BTS.
- On-time departures83.1%of 725 flights
- Average delay7.8 min
- July 202637▲ 19.4%vs July 2025
- Cancelled1.9%
- Legs flown under this number45
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 | 28 | 31 | ▲ 10.7% |
| February | 26 | 21 | ▼ 19.2% |
| March | 33 | 35 | ▲ 6.1% |
| April | 28 | 35 | ▲ 25.0% |
| May | 25 | 33 | ▲ 32.0% |
| June | 30 | 38 | ▲ 26.7% |
| July | 31 | 37 | ▲ 19.4% |
| August | 51 | – | – |
| September | 51 | – | – |
| October | 31 | – | in progress |
| November | 31 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 201 | 230 | ▲ 14.4% |
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 | 92.0% | 96.6% | ▲ 4.9% |
| February | 88.5% | 100.0% | ▲ 13.0% |
| March | 87.1% | 42.9% | ▼ 50.8% |
| April | 89.3% | 94.3% | ▲ 5.6% |
| May | 88.0% | 90.9% | ▲ 3.3% |
| June | 93.3% | 84.2% | ▼ 9.8% |
| July | 87.1% | 67.6% | ▼ 22.4% |
| August | 72.6% | – | – |
| September | 62.5% | – | – |
| October | 100.0% | – | in progress |
| November | 93.1% | – | – |
| December | 80.7% | – | – |
| Year-to-date average (Jan–Jul) | 89.3% | 82.3% | ▼ 7.8% |
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 | 3 | 2 | ▼ 33.3% |
| February | 0 | 2 | – |
| March | 2 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 3 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 4 | ▼ 20.0% |
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 98.1% 711
- Cancelled 1.9% 14
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MDW SJC Chicago Midway International Airport – Mineta San Jose International Airport | 2,950 | 7.0 min | 87.1% | 64 |
| SJU MCO Luis Munoz Marin International Airport – Orlando International Airport | 1,913 | 5.3 min | 88.5% | 61 |
| SAN SJC San Diego International Airport – Mineta San Jose International Airport | 671 | 14.7 min | 67.9% | 58 |
| RDU BWI Raleigh-Durham International Airport – Baltimore/Washington International Thurgood Marshall Airport | 411 | -3.2 min | 97.8% | 50 |
| MCI DEN Kansas City International Airport – Denver International Airport | 855 | 3.9 min | 89.8% | 49 |
| PHX SMF Phoenix Sky Harbor International Airport – Sacramento International Airport | 1,040 | 10.1 min | 69.7% | 33 |
| CLE BNA Cleveland Hopkins International Airport – Nashville International Airport | 721 | -5.6 min | 100.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 34 | 34 | 91.2% | 0 |
| November 2024 | 33 | 33 | 97.0% | 0 |
| December 2024 | 32 | 32 | 65.6% | 0 |
| January 2025 | 28 | 25 | 92.0% | 3 |
| February 2025 | 26 | 26 | 88.5% | 0 |
| March 2025 | 33 | 31 | 87.1% | 2 |
| April 2025 | 28 | 28 | 89.3% | 0 |
| May 2025 | 25 | 25 | 88.0% | 0 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 31 | 87.1% | 0 |
| August 2025 | 51 | 51 | 72.6% | 0 |
| September 2025 | 51 | 48 | 62.5% | 3 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 31 | 29 | 93.1% | 2 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 31 | 29 | 96.6% | 2 |
| February 2026 | 21 | 19 | 100.0% | 2 |
| March 2026 | 35 | 35 | 42.9% | 0 |
| April 2026 | 35 | 35 | 94.3% | 0 |
| May 2026 | 33 | 33 | 90.9% | 0 |
| June 2026 | 38 | 38 | 84.2% | 0 |
| July 2026 | 37 | 37 | 67.6% | 0 |