WN598
WN598 (Southwest Airlines) is a multi-stop service on 32 routes, busiest Miami to St Louis. Of 737 departures recorded from October 2024 to July 2026, 71.4% left on time, according to the US BTS.
- On-time departures71.4%of 737 flights
- Average delay13.7 min
- July 202624▼ 31.4%vs July 2025
- Cancelled0.3%
- Legs flown under this number32
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 | 34 | 31 | ▼ 8.8% |
| February | 28 | 25 | ▼ 10.7% |
| March | 31 | 23 | ▼ 25.8% |
| April | 47 | 38 | ▼ 19.1% |
| May | 53 | 44 | ▼ 17.0% |
| June | 37 | 22 | ▼ 40.5% |
| July | 35 | 24 | ▼ 31.4% |
| August | 40 | – | – |
| September | 39 | – | – |
| October | 32 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 265 | 207 | ▼ 21.9% |
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 | 78.8% | 83.3% | ▲ 5.8% |
| February | 85.7% | 84.0% | ▼ 2.0% |
| March | 93.6% | 82.6% | ▼ 11.7% |
| April | 66.0% | 63.2% | ▼ 4.2% |
| May | 58.5% | 47.7% | ▼ 18.4% |
| June | 83.8% | 68.2% | ▼ 18.6% |
| July | 71.4% | 41.7% | ▼ 41.7% |
| August | 67.5% | – | – |
| September | 59.0% | – | – |
| October | 84.4% | – | in progress |
| November | 73.3% | – | – |
| December | 74.2% | – | – |
| Year-to-date average (Jan–Jul) | 76.8% | 67.2% | ▼ 12.5% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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 99.7% 735
- Cancelled 0.3% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 29, 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 | 20 | 20 | 65.0% | 0 |
| November 2024 | 36 | 36 | 91.7% | 0 |
| December 2024 | 37 | 37 | 67.6% | 0 |
| January 2025 | 34 | 33 | 78.8% | 1 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 31 | 31 | 93.6% | 0 |
| April 2025 | 47 | 47 | 66.0% | 0 |
| May 2025 | 53 | 53 | 58.5% | 0 |
| June 2025 | 37 | 37 | 83.8% | 0 |
| July 2025 | 35 | 35 | 71.4% | 0 |
| August 2025 | 40 | 40 | 67.5% | 0 |
| September 2025 | 39 | 39 | 59.0% | 0 |
| October 2025 | 32 | 32 | 84.4% | 0 |
| November 2025 | 30 | 30 | 73.3% | 0 |
| December 2025 | 31 | 31 | 74.2% | 0 |
| January 2026 | 31 | 30 | 83.3% | 1 |
| February 2026 | 25 | 25 | 84.0% | 0 |
| March 2026 | 23 | 23 | 82.6% | 0 |
| April 2026 | 38 | 38 | 63.2% | 0 |
| May 2026 | 44 | 44 | 47.7% | 0 |
| June 2026 | 22 | 22 | 68.2% | 0 |
| July 2026 | 24 | 24 | 41.7% | 0 |