WN1679
WN1679 (Southwest Airlines) is a multi-stop service on 37 routes, busiest Washington to Chicago. Of 714 departures recorded from October 2024 to July 2026, 65.0% left on time, according to the US BTS.
- On-time departures65.0%of 714 flights
- Average delay21.9 min
- July 202613▼ 63.9%vs July 2025
- Cancelled1.7%
- Legs flown under this number37
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 | 28 | 54 | ▲ 92.9% |
| February | 26 | 61 | ▲ 134.6% |
| March | 30 | 31 | ▲ 3.3% |
| April | 33 | 33 | 0.0% |
| May | 36 | 35 | ▼ 2.8% |
| June | 34 | 15 | ▼ 55.9% |
| July | 36 | 13 | ▼ 63.9% |
| August | 40 | – | – |
| September | 39 | – | – |
| October | 40 | – | in progress |
| November | 17 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 223 | 242 | ▲ 8.5% |
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 | 73.1% | 74.0% | ▲ 1.3% |
| February | 34.6% | 80.0% | ▲ 131.1% |
| March | 73.3% | 54.8% | ▼ 25.2% |
| April | 93.9% | 42.4% | ▼ 54.8% |
| May | 82.9% | 22.9% | ▼ 72.4% |
| June | 48.5% | 60.0% | ▲ 23.8% |
| July | 32.4% | 69.2% | ▲ 114.0% |
| August | 65.0% | – | – |
| September | 92.3% | – | – |
| October | 42.5% | – | in progress |
| November | 82.4% | – | – |
| December | 40.0% | – | – |
| Year-to-date average (Jan–Jul) | 62.7% | 57.6% | ▼ 8.0% |
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 | 2 | 4 | ▲ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 1 | 0 | ▼ 100.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 6 | 5 | ▼ 16.7% |
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 98.3% 702
- Cancelled 1.7% 12
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 | 27 | 27 | 92.6% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 30 | 30 | 73.3% | 0 |
| January 2025 | 28 | 26 | 73.1% | 2 |
| February 2025 | 26 | 26 | 34.6% | 0 |
| March 2025 | 30 | 30 | 73.3% | 0 |
| April 2025 | 33 | 33 | 93.9% | 0 |
| May 2025 | 36 | 35 | 82.9% | 1 |
| June 2025 | 34 | 33 | 48.5% | 1 |
| July 2025 | 36 | 34 | 32.4% | 2 |
| August 2025 | 40 | 40 | 65.0% | 0 |
| September 2025 | 39 | 39 | 92.3% | 0 |
| October 2025 | 40 | 40 | 42.5% | 0 |
| November 2025 | 17 | 17 | 82.4% | 0 |
| December 2025 | 26 | 25 | 40.0% | 1 |
| January 2026 | 54 | 50 | 74.0% | 4 |
| February 2026 | 61 | 60 | 80.0% | 1 |
| March 2026 | 31 | 31 | 54.8% | 0 |
| April 2026 | 33 | 33 | 42.4% | 0 |
| May 2026 | 35 | 35 | 22.9% | 0 |
| June 2026 | 15 | 15 | 60.0% | 0 |
| July 2026 | 13 | 13 | 69.2% | 0 |