WN3583
WN3583 (Southwest Airlines) is a multi-stop service on 27 routes, busiest San Antonio to Chicago. Of 495 departures recorded from October 2024 to July 2026, 73.7% left on time, according to the US BTS.
- On-time departures73.7%of 495 flights
- Average delay13.2 min
- July 202631▲ 675.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number27
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 6 | 6 | 0.0% |
| February | 7 | – | – |
| March | 27 | 26 | ▼ 3.7% |
| April | 27 | 46 | ▲ 70.4% |
| May | 26 | 46 | ▲ 76.9% |
| June | 4 | 34 | ▲ 750.0% |
| July | 4 | 31 | ▲ 675.0% |
| August | 42 | – | – |
| September | 47 | – | – |
| October | 35 | – | in progress |
| November | 31 | – | – |
| December | 33 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 100.0% | 0.0% |
| February | 85.7% | – | – |
| March | 81.5% | 80.8% | ▼ 0.9% |
| April | 69.2% | 82.6% | ▲ 19.3% |
| May | 65.4% | 54.4% | ▼ 16.9% |
| June | 75.0% | 82.4% | ▲ 9.8% |
| July | 100.0% | 93.3% | ▼ 6.7% |
| August | 73.8% | – | – |
| September | 68.1% | – | – |
| October | 100.0% | – | in progress |
| November | 48.3% | – | – |
| December | 45.5% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 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 99.2% 491
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 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 |
|---|---|---|---|---|
| SAT MDW San Antonio International Airport – Chicago Midway International Airport | 1,668 | 5.9 min | 87.7% | 58 |
| MDW BUF Chicago Midway International Airport – Buffalo Niagara International Airport | 752 | 8.1 min | 80.7% | 57 |
| DEN MCI Denver International Airport – Kansas City International Airport | 855 | 11.4 min | 71.9% | 57 |
| DAL AMA Dallas Love Field – Rick Husband Amarillo International Airport | 520 | 15.0 min | 71.4% | 50 |
| BNA AUS Nashville International Airport – Austin Bergstrom International Airport | 1,215 | 12.1 min | 72.7% | 33 |
| LAS MCO Harry Reid International Airport – Orlando International Airport | 3,276 | 8.8 min | 81.3% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 77.8% | 0 |
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 4 | 4 | 50.0% | 0 |
| January 2025 | 6 | 6 | 100.0% | 0 |
| February 2025 | 7 | 7 | 85.7% | 0 |
| March 2025 | 27 | 27 | 81.5% | 0 |
| April 2025 | 27 | 26 | 69.2% | 1 |
| May 2025 | 26 | 26 | 65.4% | 0 |
| June 2025 | 4 | 4 | 75.0% | 0 |
| July 2025 | 4 | 4 | 100.0% | 0 |
| August 2025 | 42 | 42 | 73.8% | 0 |
| September 2025 | 47 | 47 | 68.1% | 0 |
| October 2025 | 35 | 35 | 100.0% | 0 |
| November 2025 | 31 | 29 | 48.3% | 2 |
| December 2025 | 33 | 33 | 45.5% | 0 |
| January 2026 | 6 | 6 | 100.0% | 0 |
| March 2026 | 26 | 26 | 80.8% | 0 |
| April 2026 | 46 | 46 | 82.6% | 0 |
| May 2026 | 46 | 46 | 54.4% | 0 |
| June 2026 | 34 | 34 | 82.4% | 0 |
| July 2026 | 31 | 30 | 93.3% | 1 |