WN1401
WN1401 (Southwest Airlines) is a multi-stop service on 28 routes, busiest Washington to St Louis. Of 742 departures recorded from October 2024 to July 2026, 79.6% left on time, according to the US BTS.
- On-time departures79.6%of 742 flights
- Average delay9.7 min
- July 202662▲ 181.8%vs July 2025
- Cancelled1.4%
- Legs flown under this number28
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 | 50 | 26 | ▼ 48.0% |
| February | 35 | 27 | ▼ 22.9% |
| March | 37 | 31 | ▼ 16.2% |
| April | 22 | 38 | ▲ 72.7% |
| May | 16 | 39 | ▲ 143.8% |
| June | 21 | 59 | ▲ 181.0% |
| July | 22 | 62 | ▲ 181.8% |
| August | 25 | – | – |
| September | 26 | – | – |
| October | 35 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 203 | 282 | ▲ 38.9% |
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 | 81.8% | 96.2% | ▲ 17.5% |
| February | 80.0% | 100.0% | ▲ 25.0% |
| March | 75.0% | 96.7% | ▲ 28.9% |
| April | 61.9% | 89.2% | ▲ 44.1% |
| May | 56.3% | 69.2% | ▲ 23.1% |
| June | 85.7% | 57.6% | ▼ 32.8% |
| July | 90.9% | 72.6% | ▼ 20.2% |
| August | 72.0% | – | – |
| September | 69.2% | – | – |
| October | 97.1% | – | in progress |
| November | 86.2% | – | – |
| December | 79.3% | – | – |
| Year-to-date average (Jan–Jul) | 75.9% | 83.1% | ▲ 9.4% |
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 | 6 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 1 | 1 | 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) | 8 | 2 | ▼ 75.0% |
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 98.7% 732
- Cancelled 1.3% 10
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 | 19 | 19 | 79.0% | 0 |
| November 2024 | 45 | 45 | 95.6% | 0 |
| December 2024 | 49 | 49 | 73.5% | 0 |
| January 2025 | 50 | 44 | 81.8% | 6 |
| February 2025 | 35 | 35 | 80.0% | 0 |
| March 2025 | 37 | 36 | 75.0% | 1 |
| April 2025 | 22 | 21 | 61.9% | 1 |
| May 2025 | 16 | 16 | 56.3% | 0 |
| June 2025 | 21 | 21 | 85.7% | 0 |
| July 2025 | 22 | 22 | 90.9% | 0 |
| August 2025 | 25 | 25 | 72.0% | 0 |
| September 2025 | 26 | 26 | 69.2% | 0 |
| October 2025 | 35 | 35 | 97.1% | 0 |
| November 2025 | 29 | 29 | 86.2% | 0 |
| December 2025 | 29 | 29 | 79.3% | 0 |
| January 2026 | 26 | 26 | 96.2% | 0 |
| February 2026 | 27 | 27 | 100.0% | 0 |
| March 2026 | 31 | 30 | 96.7% | 1 |
| April 2026 | 38 | 37 | 89.2% | 1 |
| May 2026 | 39 | 39 | 69.2% | 0 |
| June 2026 | 59 | 59 | 57.6% | 0 |
| July 2026 | 62 | 62 | 72.6% | 0 |