WN1788
WN1788 (Southwest Airlines) is a multi-stop service on 27 routes, busiest San Jose to Ontario. Of 654 departures recorded from October 2024 to July 2026, 84.2% left on time, according to the US BTS.
- On-time departures84.2%of 654 flights
- Average delay8.2 min
- July 202627▼ 18.2%vs July 2025
- Cancelled0.5%
- Legs flown under this number27
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 26 | 29 | ▲ 11.5% |
| February | 28 | 28 | 0.0% |
| March | 56 | 39 | ▼ 30.4% |
| April | 36 | 32 | ▼ 11.1% |
| May | 31 | 31 | 0.0% |
| June | 36 | 26 | ▼ 27.8% |
| July | 33 | 27 | ▼ 18.2% |
| August | 28 | – | – |
| September | 25 | – | – |
| October | 27 | – | in progress |
| November | 25 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 246 | 212 | ▼ 13.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 84.6% | 92.9% | ▲ 9.7% |
| February | 85.7% | 100.0% | ▲ 16.7% |
| March | 96.4% | 53.9% | ▼ 44.1% |
| April | 75.0% | 90.3% | ▲ 20.4% |
| May | 90.3% | 100.0% | ▲ 10.7% |
| June | 77.8% | 88.5% | ▲ 13.7% |
| July | 69.7% | 85.2% | ▲ 22.2% |
| August | 89.3% | – | – |
| September | 96.0% | – | – |
| October | 96.3% | – | in progress |
| November | 72.0% | – | – |
| December | 46.2% | – | – |
| Year-to-date average (Jan–Jul) | 82.8% | 87.2% | ▲ 5.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 1 | – |
| 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) | 1 | 2 | ▲ 100.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.5% 651
- Cancelled 0.5% 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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SJC ONT Mineta San Jose International Airport – Ontario International Airport | 536 | 7.3 min | 84.4% | 90 |
| HNL LAS Daniel K. Inouye International Airport – Harry Reid International Airport | 4,441 | 0.0 min | 96.5% | 58 |
| DEN BNA Denver International Airport – Nashville International Airport | 1,628 | -1.5 min | 98.3% | 58 |
| RDU STL Raleigh-Durham International Airport – St. Louis Lambert International Airport | 1,072 | 7.5 min | 91.2% | 57 |
| STL CLT St. Louis Lambert International Airport – Charlotte Douglas International Airport | 924 | 25.4 min | 59.6% | 52 |
| AUS HOU Austin Bergstrom International Airport – William P. Hobby Airport | 238 | -2.1 min | 97.9% | 48 |
| MCO MDW Orlando International Airport – Chicago Midway International Airport | 1,595 | 16.6 min | 75.6% | 45 |
| BWI STL Baltimore/Washington International Thurgood Marshall Airport – St. Louis Lambert International Airport | 1,185 | 24.8 min | 51.5% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 29 | 29 | 93.1% | 0 |
| November 2024 | 20 | 20 | 100.0% | 0 |
| December 2024 | 16 | 16 | 68.8% | 0 |
| January 2025 | 26 | 26 | 84.6% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 56 | 55 | 96.4% | 1 |
| April 2025 | 36 | 36 | 75.0% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 36 | 36 | 77.8% | 0 |
| July 2025 | 33 | 33 | 69.7% | 0 |
| August 2025 | 28 | 28 | 89.3% | 0 |
| September 2025 | 25 | 25 | 96.0% | 0 |
| October 2025 | 27 | 27 | 96.3% | 0 |
| November 2025 | 25 | 25 | 72.0% | 0 |
| December 2025 | 26 | 26 | 46.2% | 0 |
| January 2026 | 29 | 28 | 92.9% | 1 |
| February 2026 | 28 | 28 | 100.0% | 0 |
| March 2026 | 39 | 39 | 53.9% | 0 |
| April 2026 | 32 | 31 | 90.3% | 1 |
| May 2026 | 31 | 31 | 100.0% | 0 |
| June 2026 | 26 | 26 | 88.5% | 0 |
| July 2026 | 27 | 27 | 85.2% | 0 |