WN3566
WN3566 (Southwest Airlines) is a multi-stop service on 25 routes, busiest New York to St Louis. Of 570 departures recorded from October 2024 to July 2026, 75.4% left on time, according to the US BTS.
- On-time departures75.4%of 570 flights
- Average delay12.4 min
- July 202661▲ 96.8%vs July 2025
- Cancelled0.7%
- Legs flown under this number25
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 | 9 | 31 | ▲ 244.4% |
| February | 19 | 25 | ▲ 31.6% |
| March | 11 | 55 | ▲ 400.0% |
| April | 19 | 24 | ▲ 26.3% |
| May | 22 | 17 | ▼ 22.7% |
| June | 29 | 56 | ▲ 93.1% |
| July | 31 | 61 | ▲ 96.8% |
| August | 42 | – | – |
| September | 43 | – | – |
| October | 1 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 140 | 269 | ▲ 92.1% |
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 | 100.0% | 87.1% | ▼ 12.9% |
| February | 89.5% | 80.0% | ▼ 10.6% |
| March | 72.7% | 64.8% | ▼ 10.9% |
| April | 79.0% | 83.3% | ▲ 5.5% |
| May | 68.2% | 87.5% | ▲ 28.3% |
| June | 82.8% | 58.2% | ▼ 29.7% |
| July | 70.0% | 59.0% | ▼ 15.7% |
| August | 90.5% | – | – |
| September | 93.0% | – | – |
| October | 100.0% | – | in progress |
| November | 71.4% | – | – |
| December | 71.0% | – | – |
| Year-to-date average (Jan–Jul) | 80.3% | 74.3% | ▼ 7.5% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 1 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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 99.3% 566
- Cancelled 0.7% 4
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 |
|---|---|---|---|---|
| LGA STL LaGuardia Airport – St. Louis Lambert International Airport | 1,426 | 11.5 min | 76.7% | 61 |
| MCO BNA Orlando International Airport – Nashville International Airport | 993 | 19.2 min | 70.0% | 60 |
| SJC SNA Mineta San Jose International Airport – John Wayne Orange County International Airport | 550 | 6.8 min | 85.5% | 55 |
| SAT HOU San Antonio International Airport – William P. Hobby Airport | 309 | 11.5 min | 80.0% | 50 |
| PHX MCO Phoenix Sky Harbor International Airport – Orlando International Airport | 2,969 | 7.0 min | 88.1% | 42 |
| SLC PHX Salt Lake City International Airport – Phoenix Sky Harbor International Airport | 818 | -2.2 min | 95.0% | 40 |
| SEA SMF Seattle–Tacoma International Airport – Sacramento International Airport | 975 | 37.1 min | 33.3% | 33 |
| OAK PSP Oakland San Francisco Bay Airport – Palm Springs International Airport | 673 | -0.3 min | 89.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 88.9% | 0 |
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 3 | 3 | 33.3% | 0 |
| January 2025 | 9 | 9 | 100.0% | 0 |
| February 2025 | 19 | 19 | 89.5% | 0 |
| March 2025 | 11 | 11 | 72.7% | 0 |
| April 2025 | 19 | 19 | 79.0% | 0 |
| May 2025 | 22 | 22 | 68.2% | 0 |
| June 2025 | 29 | 29 | 82.8% | 0 |
| July 2025 | 31 | 30 | 70.0% | 1 |
| August 2025 | 42 | 42 | 90.5% | 0 |
| September 2025 | 43 | 43 | 93.0% | 0 |
| October 2025 | 1 | 1 | 100.0% | 0 |
| November 2025 | 28 | 28 | 71.4% | 0 |
| December 2025 | 31 | 31 | 71.0% | 0 |
| January 2026 | 31 | 31 | 87.1% | 0 |
| February 2026 | 25 | 25 | 80.0% | 0 |
| March 2026 | 55 | 54 | 64.8% | 1 |
| April 2026 | 24 | 24 | 83.3% | 0 |
| May 2026 | 17 | 16 | 87.5% | 1 |
| June 2026 | 56 | 55 | 58.2% | 1 |
| July 2026 | 61 | 61 | 59.0% | 0 |