WN537
WN537 (Southwest Airlines) is a multi-stop service on 45 routes, busiest New Orleans to Baltimore. Of 768 departures recorded from October 2024 to July 2026, 72.9% left on time, according to the US BTS.
- On-time departures72.9%of 768 flights
- Average delay13.3 min
- July 202628▼ 48.1%vs July 2025
- Cancelled1.4%
- Legs flown under this number45
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 | 37 | 32 | ▼ 13.5% |
| February | 30 | 28 | ▼ 6.7% |
| March | 31 | 39 | ▲ 25.8% |
| April | 30 | 40 | ▲ 33.3% |
| May | 30 | 39 | ▲ 30.0% |
| June | 50 | 28 | ▼ 44.0% |
| July | 54 | 28 | ▼ 48.1% |
| August | 40 | – | – |
| September | 38 | – | – |
| October | 31 | – | in progress |
| November | 32 | – | – |
| December | 33 | – | – |
| Year to date (Jan–Jul) | 262 | 234 | ▼ 10.7% |
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 | 81.3% | 62.5% | ▼ 23.1% |
| February | 76.7% | 60.7% | ▼ 20.8% |
| March | 74.2% | 36.8% | ▼ 50.3% |
| April | 86.7% | 85.0% | ▼ 1.9% |
| May | 83.3% | 73.7% | ▼ 11.6% |
| June | 64.0% | 78.6% | ▲ 22.8% |
| July | 50.9% | 96.4% | ▲ 89.3% |
| August | 80.0% | – | – |
| September | 81.6% | – | – |
| October | 80.7% | – | in progress |
| November | 75.9% | – | – |
| December | 42.4% | – | – |
| Year-to-date average (Jan–Jul) | 73.9% | 70.5% | ▼ 4.5% |
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 | 5 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 3 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 2 | ▼ 66.7% |
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 98.6% 757
- Cancelled 1.4% 11
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
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 91.3% | 0 |
| November 2024 | 35 | 35 | 85.7% | 0 |
| December 2024 | 40 | 40 | 82.5% | 0 |
| January 2025 | 37 | 32 | 81.3% | 5 |
| February 2025 | 30 | 30 | 76.7% | 0 |
| March 2025 | 31 | 31 | 74.2% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 30 | 30 | 83.3% | 0 |
| June 2025 | 50 | 50 | 64.0% | 0 |
| July 2025 | 54 | 53 | 50.9% | 1 |
| August 2025 | 40 | 40 | 80.0% | 0 |
| September 2025 | 38 | 38 | 81.6% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 32 | 29 | 75.9% | 3 |
| December 2025 | 33 | 33 | 42.4% | 0 |
| January 2026 | 32 | 32 | 62.5% | 0 |
| February 2026 | 28 | 28 | 60.7% | 0 |
| March 2026 | 39 | 38 | 36.8% | 1 |
| April 2026 | 40 | 40 | 85.0% | 0 |
| May 2026 | 39 | 38 | 73.7% | 1 |
| June 2026 | 28 | 28 | 78.6% | 0 |
| July 2026 | 28 | 28 | 96.4% | 0 |