WN573
WN573 (Southwest Airlines) is a multi-stop service on 41 routes, busiest New York to Dallas. Of 737 departures recorded from October 2024 to July 2026, 84.9% left on time, according to the US BTS.
- On-time departures84.9%of 737 flights
- Average delay7.6 min
- July 202631▼ 39.2%vs July 2025
- Cancelled0.5%
- Legs flown under this number41
Recorded departures by month
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 | 30 | 29 | ▼ 3.3% |
| February | 30 | 17 | ▼ 43.3% |
| March | 32 | 38 | ▲ 18.8% |
| April | 30 | 42 | ▲ 40.0% |
| May | 31 | 42 | ▲ 35.5% |
| June | 50 | 31 | ▼ 38.0% |
| July | 51 | 31 | ▼ 39.2% |
| August | 36 | – | – |
| September | 31 | – | – |
| October | 28 | – | in progress |
| November | 31 | – | – |
| December | 40 | – | – |
| Year to date (Jan–Jul) | 254 | 230 | ▼ 9.4% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 89.7% | 86.2% | ▼ 3.8% |
| February | 96.7% | 70.6% | ▼ 27.0% |
| March | 96.8% | 67.6% | ▼ 30.2% |
| April | 90.0% | 81.0% | ▼ 10.1% |
| May | 96.8% | 57.1% | ▼ 41.0% |
| June | 90.0% | 80.7% | ▼ 10.4% |
| July | 88.2% | 83.9% | ▼ 5.0% |
| August | 83.3% | – | – |
| September | 93.6% | – | – |
| October | 71.4% | – | in progress |
| November | 86.7% | – | – |
| December | 85.0% | – | – |
| Year-to-date average (Jan–Jul) | 92.6% | 75.3% | ▼ 18.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.5% 733
- Cancelled 0.5% 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
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 30 | 30 | 83.3% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 28 | 28 | 100.0% | 0 |
| January 2025 | 30 | 29 | 89.7% | 1 |
| February 2025 | 30 | 30 | 96.7% | 0 |
| March 2025 | 32 | 31 | 96.8% | 1 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 50 | 50 | 90.0% | 0 |
| July 2025 | 51 | 51 | 88.2% | 0 |
| August 2025 | 36 | 36 | 83.3% | 0 |
| September 2025 | 31 | 31 | 93.6% | 0 |
| October 2025 | 28 | 28 | 71.4% | 0 |
| November 2025 | 31 | 30 | 86.7% | 1 |
| December 2025 | 40 | 40 | 85.0% | 0 |
| January 2026 | 29 | 29 | 86.2% | 0 |
| February 2026 | 17 | 17 | 70.6% | 0 |
| March 2026 | 38 | 37 | 67.6% | 1 |
| April 2026 | 42 | 42 | 81.0% | 0 |
| May 2026 | 42 | 42 | 57.1% | 0 |
| June 2026 | 31 | 31 | 80.7% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |