WN383
WN383 (Southwest Airlines) is a multi-stop service on 44 routes, busiest Los Angeles to St Louis. Of 882 departures recorded from October 2024 to July 2026, 72.9% left on time, according to the US BTS.
- On-time departures72.9%of 882 flights
- Average delay12.5 min
- July 202631▼ 34.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number44
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 | 35 | 36 | ▲ 2.9% |
| February | 28 | 49 | ▲ 75.0% |
| March | 27 | 33 | ▲ 22.2% |
| April | 29 | 29 | 0.0% |
| May | 28 | 31 | ▲ 10.7% |
| June | 45 | 30 | ▼ 33.3% |
| July | 47 | 31 | ▼ 34.0% |
| August | 83 | – | – |
| September | 87 | – | – |
| October | 53 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 239 | 239 | 0.0% |
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 | 97.0% | 84.9% | ▼ 12.5% |
| February | 82.1% | 93.6% | ▲ 14.0% |
| March | 74.1% | 60.6% | ▼ 18.2% |
| April | 79.3% | 75.9% | ▼ 4.4% |
| May | 92.9% | 61.3% | ▼ 34.0% |
| June | 55.6% | 76.7% | ▲ 38.0% |
| July | 42.6% | 80.7% | ▲ 89.5% |
| August | 59.0% | – | – |
| September | 55.8% | – | – |
| October | 69.8% | – | in progress |
| November | 67.9% | – | – |
| December | 82.8% | – | – |
| Year-to-date average (Jan–Jul) | 74.8% | 76.2% | ▲ 1.9% |
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 | 2 | 3 | ▲ 50.0% |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 5 | ▲ 150.0% |
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 99.1% 874
- Cancelled 0.9% 8
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 |
|---|---|---|---|---|
| LAX STL Los Angeles International Airport – St. Louis Lambert International Airport | 2,557 | 1.6 min | 94.7% | 114 |
| OAK SEA Oakland San Francisco Bay Airport – Seattle–Tacoma International Airport | 1,082 | 29.1 min | 49.2% | 61 |
| SAT DEN San Antonio International Airport – Denver International Airport | 1,280 | 7.3 min | 75.0% | 60 |
| TPA LAX Tampa International Airport – Los Angeles International Airport | 3,466 | 12.7 min | 70.2% | 57 |
| LGB LAS Long Beach International Airport – Harry Reid International Airport | 372 | 24.7 min | 57.1% | 50 |
| BUR SJC Hollywood Burbank/Bob Hope Airport – Mineta San Jose International Airport | 477 | -3.3 min | 100.0% | 46 |
| PHX DAL Phoenix Sky Harbor International Airport – Dallas Love Field | 1,412 | 8.2 min | 81.3% | 33 |
| PVD BWI Rhode Island T. F. Green International Airport – Baltimore/Washington International Thurgood Marshall Airport | 526 | 7.4 min | 74.2% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 100.0% | 0 |
| November 2024 | 47 | 47 | 87.2% | 0 |
| December 2024 | 60 | 60 | 86.7% | 0 |
| January 2025 | 35 | 33 | 97.0% | 2 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 27 | 27 | 74.1% | 0 |
| April 2025 | 29 | 29 | 79.3% | 0 |
| May 2025 | 28 | 28 | 92.9% | 0 |
| June 2025 | 45 | 45 | 55.6% | 0 |
| July 2025 | 47 | 47 | 42.6% | 0 |
| August 2025 | 83 | 83 | 59.0% | 0 |
| September 2025 | 87 | 86 | 55.8% | 1 |
| October 2025 | 53 | 53 | 69.8% | 0 |
| November 2025 | 28 | 28 | 67.9% | 0 |
| December 2025 | 29 | 29 | 82.8% | 0 |
| January 2026 | 36 | 33 | 84.9% | 3 |
| February 2026 | 49 | 47 | 93.6% | 2 |
| March 2026 | 33 | 33 | 60.6% | 0 |
| April 2026 | 29 | 29 | 75.9% | 0 |
| May 2026 | 31 | 31 | 61.3% | 0 |
| June 2026 | 30 | 30 | 76.7% | 0 |
| July 2026 | 31 | 31 | 80.7% | 0 |