WN678
WN678 (Southwest Airlines) is a multi-stop service on 37 routes, busiest Tampa to Denver. Of 671 departures recorded from October 2024 to July 2026, 77.0% left on time, according to the US BTS.
- On-time departures77.0%of 671 flights
- Average delay11.9 min
- July 202618▼ 50.0%vs July 2025
- Cancelled0.2%
- 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 | 57 | 30 | ▼ 47.4% |
| February | 43 | 28 | ▼ 34.9% |
| March | 34 | 32 | ▼ 5.9% |
| April | 30 | 31 | ▲ 3.3% |
| May | 30 | 31 | ▲ 3.3% |
| June | 34 | 18 | ▼ 47.1% |
| July | 36 | 18 | ▼ 50.0% |
| August | 42 | – | – |
| September | 39 | – | – |
| October | 32 | – | in progress |
| November | 21 | – | – |
| December | 17 | – | – |
| Year to date (Jan–Jul) | 264 | 188 | ▼ 28.8% |
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 | 82.1% | 66.7% | ▼ 18.8% |
| February | 79.1% | 60.7% | ▼ 23.2% |
| March | 91.2% | 90.6% | ▼ 0.6% |
| April | 93.3% | 58.1% | ▼ 37.8% |
| May | 83.3% | 32.3% | ▼ 61.3% |
| June | 73.5% | 66.7% | ▼ 9.3% |
| July | 83.3% | 88.9% | ▲ 6.7% |
| August | 83.3% | – | – |
| September | 82.1% | – | – |
| October | 68.8% | – | in progress |
| November | 81.0% | – | – |
| December | 94.1% | – | – |
| Year-to-date average (Jan–Jul) | 83.7% | 66.3% | ▼ 20.8% |
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 | 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 | 0 | ▼ 100.0% |
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 99.9% 670
- Cancelled 0.1% 1
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 | 19 | 19 | 100.0% | 0 |
| December 2024 | 29 | 29 | 72.4% | 0 |
| January 2025 | 57 | 56 | 82.1% | 1 |
| February 2025 | 43 | 43 | 79.1% | 0 |
| March 2025 | 34 | 34 | 91.2% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 30 | 30 | 83.3% | 0 |
| June 2025 | 34 | 34 | 73.5% | 0 |
| July 2025 | 36 | 36 | 83.3% | 0 |
| August 2025 | 42 | 42 | 83.3% | 0 |
| September 2025 | 39 | 39 | 82.1% | 0 |
| October 2025 | 32 | 32 | 68.8% | 0 |
| November 2025 | 21 | 21 | 81.0% | 0 |
| December 2025 | 17 | 17 | 94.1% | 0 |
| January 2026 | 30 | 30 | 66.7% | 0 |
| February 2026 | 28 | 28 | 60.7% | 0 |
| March 2026 | 32 | 32 | 90.6% | 0 |
| April 2026 | 31 | 31 | 58.1% | 0 |
| May 2026 | 31 | 31 | 32.3% | 0 |
| June 2026 | 18 | 18 | 66.7% | 0 |
| July 2026 | 18 | 18 | 88.9% | 0 |