WN979
WN979 (Southwest Airlines) is a multi-stop service on 35 routes, busiest Denver to Atlanta. Of 696 departures recorded from October 2024 to July 2026, 78.7% left on time, according to the US BTS.
- On-time departures78.7%of 696 flights
- Average delay11.2 min
- July 202627▼ 42.6%vs July 2025
- Cancelled1.4%
- Legs flown under this number35
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 | 31 | 25 | ▼ 19.4% |
| March | 18 | 31 | ▲ 72.2% |
| April | 44 | 30 | ▼ 31.8% |
| May | 58 | 30 | ▼ 48.3% |
| June | 48 | 26 | ▼ 45.8% |
| July | 47 | 27 | ▼ 42.6% |
| August | 30 | – | – |
| September | 26 | – | – |
| October | 36 | – | in progress |
| November | 26 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 280 | 200 | ▼ 28.6% |
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% | 90.3% | ▲ 10.4% |
| February | 64.5% | 72.0% | ▲ 11.6% |
| March | 83.3% | 96.6% | ▲ 15.9% |
| April | 75.0% | 79.3% | ▲ 5.7% |
| May | 70.4% | 96.7% | ▲ 37.4% |
| June | 79.2% | 84.6% | ▲ 6.9% |
| July | 80.4% | 65.4% | ▼ 18.7% |
| August | 80.0% | – | – |
| September | 69.2% | – | – |
| October | 88.9% | – | in progress |
| November | 73.1% | – | – |
| December | 62.1% | – | – |
| Year-to-date average (Jan–Jul) | 76.4% | 83.6% | ▲ 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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 4 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 4 | ▼ 33.3% |
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% 686
- Cancelled 1.4% 10
Share of all recorded flights in the period, all legs. · Oct 13, 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 | 10 | 10 | 90.0% | 0 |
| November 2024 | 27 | 27 | 81.5% | 0 |
| December 2024 | 32 | 32 | 78.1% | 0 |
| January 2025 | 34 | 33 | 81.8% | 1 |
| February 2025 | 31 | 31 | 64.5% | 0 |
| March 2025 | 18 | 18 | 83.3% | 0 |
| April 2025 | 44 | 44 | 75.0% | 0 |
| May 2025 | 58 | 54 | 70.4% | 4 |
| June 2025 | 48 | 48 | 79.2% | 0 |
| July 2025 | 47 | 46 | 80.4% | 1 |
| August 2025 | 30 | 30 | 80.0% | 0 |
| September 2025 | 26 | 26 | 69.2% | 0 |
| October 2025 | 36 | 36 | 88.9% | 0 |
| November 2025 | 26 | 26 | 73.1% | 0 |
| December 2025 | 29 | 29 | 62.1% | 0 |
| January 2026 | 31 | 31 | 90.3% | 0 |
| February 2026 | 25 | 25 | 72.0% | 0 |
| March 2026 | 31 | 29 | 96.6% | 2 |
| April 2026 | 30 | 29 | 79.3% | 1 |
| May 2026 | 30 | 30 | 96.7% | 0 |
| June 2026 | 26 | 26 | 84.6% | 0 |
| July 2026 | 27 | 26 | 65.4% | 1 |