WN373
WN373 (Southwest Airlines) is a multi-stop service on 39 routes, busiest San Diego to Oakland. Of 687 departures recorded from October 2024 to July 2026, 77.4% left on time, according to the US BTS.
- On-time departures77.4%of 687 flights
- Average delay10.2 min
- July 202631▲ 121.4%vs July 2025
- Cancelled0.9%
- Legs flown under this number39
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 | 33 | 32 | ▼ 3.0% |
| February | 32 | 25 | ▼ 21.9% |
| March | 45 | 42 | ▼ 6.7% |
| April | 34 | 29 | ▼ 14.7% |
| May | 31 | 26 | ▼ 16.1% |
| June | 14 | 30 | ▲ 114.3% |
| July | 14 | 31 | ▲ 121.4% |
| August | 40 | – | – |
| September | 43 | – | – |
| October | 28 | – | in progress |
| November | 32 | – | – |
| December | 36 | – | – |
| Year to date (Jan–Jul) | 203 | 215 | ▲ 5.9% |
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 | 87.9% | 76.7% | ▼ 12.8% |
| February | 84.4% | 80.0% | ▼ 5.2% |
| March | 95.6% | 63.4% | ▼ 33.6% |
| April | 82.4% | 72.4% | ▼ 12.1% |
| May | 77.4% | 50.0% | ▼ 35.4% |
| June | 92.9% | 48.3% | ▼ 48.0% |
| July | 100.0% | 45.2% | ▼ 54.8% |
| August | 92.5% | – | – |
| September | 88.4% | – | – |
| October | 82.1% | – | in progress |
| November | 71.0% | – | – |
| December | 63.9% | – | – |
| Year-to-date average (Jan–Jul) | 88.6% | 62.3% | ▼ 29.7% |
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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 4 |
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 99.1% 681
- Cancelled 0.9% 6
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 |
|---|---|---|---|---|
| SAN OAK San Diego International Airport – Oakland San Francisco Bay Airport | 718 | 8.1 min | 81.4% | 87 |
| SMF SNA Sacramento International Airport – John Wayne Orange County International Airport | 650 | 6.6 min | 81.0% | 58 |
| DAL SAT Dallas Love Field – San Antonio International Airport | 399 | 2.9 min | 81.1% | 55 |
| ATL HOU Hartsfield Jackson Atlanta International Airport – William P. Hobby Airport | 1,118 | 16.2 min | 67.9% | 54 |
| RIC BWI Richmond International Airport – Baltimore/Washington International Thurgood Marshall Airport | 194 | 3.6 min | 90.5% | 42 |
| STL MDW St. Louis Lambert International Airport – Chicago Midway International Airport | 404 | 21.4 min | 59.4% | 33 |
| ATL AUS Hartsfield Jackson Atlanta International Airport – Austin Bergstrom International Airport | 1,305 | 2.0 min | 90.9% | 33 |
| AUS LAS Austin Bergstrom International Airport – Harry Reid International Airport | 1,752 | 38.6 min | 32.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 27 | 27 | 85.2% | 0 |
| December 2024 | 43 | 42 | 78.6% | 1 |
| January 2025 | 33 | 33 | 87.9% | 0 |
| February 2025 | 32 | 32 | 84.4% | 0 |
| March 2025 | 45 | 45 | 95.6% | 0 |
| April 2025 | 34 | 34 | 82.4% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 14 | 14 | 92.9% | 0 |
| July 2025 | 14 | 14 | 100.0% | 0 |
| August 2025 | 40 | 40 | 92.5% | 0 |
| September 2025 | 43 | 43 | 88.4% | 0 |
| October 2025 | 28 | 28 | 82.1% | 0 |
| November 2025 | 32 | 31 | 71.0% | 1 |
| December 2025 | 36 | 36 | 63.9% | 0 |
| January 2026 | 32 | 30 | 76.7% | 2 |
| February 2026 | 25 | 25 | 80.0% | 0 |
| March 2026 | 42 | 41 | 63.4% | 1 |
| April 2026 | 29 | 29 | 72.4% | 0 |
| May 2026 | 26 | 26 | 50.0% | 0 |
| June 2026 | 30 | 29 | 48.3% | 1 |
| July 2026 | 31 | 31 | 45.2% | 0 |