WN516
WN516 (Southwest Airlines) is a multi-stop service on 43 routes, busiest Denver to St Louis. Of 748 departures recorded from October 2024 to July 2026, 71.7% left on time, according to the US BTS.
- On-time departures71.7%of 748 flights
- Average delay16.6 min
- July 202631▼ 29.5%vs July 2025
- Cancelled0.7%
- Legs flown under this number43
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 32 | 32 | 0.0% |
| February | 19 | 34 | ▲ 78.9% |
| March | 42 | 25 | ▼ 40.5% |
| April | 33 | 28 | ▼ 15.2% |
| May | 31 | 31 | 0.0% |
| June | 40 | 30 | ▼ 25.0% |
| July | 44 | 31 | ▼ 29.5% |
| August | 32 | – | – |
| September | 30 | – | – |
| October | 41 | – | in progress |
| November | 27 | – | – |
| December | 39 | – | – |
| Year to date (Jan–Jul) | 241 | 211 | ▼ 12.4% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 68.8% | 62.5% | ▼ 9.1% |
| February | 57.9% | 47.1% | ▼ 18.7% |
| March | 78.1% | 58.3% | ▼ 25.3% |
| April | 66.7% | 85.7% | ▲ 28.6% |
| May | 58.1% | 93.6% | ▲ 61.1% |
| June | 62.5% | 90.0% | ▲ 44.0% |
| July | 54.6% | 83.9% | ▲ 53.7% |
| August | 75.0% | – | – |
| September | 86.7% | – | – |
| October | 58.5% | – | in progress |
| November | 88.5% | – | – |
| December | 74.4% | – | – |
| Year-to-date average (Jan–Jul) | 63.8% | 74.4% | ▲ 16.7% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 1 | 0.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.3% 743
- Cancelled 0.7% 5
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN STL Denver International Airport – St. Louis Lambert International Airport | 1,236 | 15.7 min | 69.6% | 93 |
| AUS DAL Austin Bergstrom International Airport – Dallas Love Field | 304 | 23.4 min | 71.7% | 60 |
| OAK ONT Oakland San Francisco Bay Airport – Ontario International Airport | 582 | -4.1 min | 93.0% | 57 |
| DAL SAN Dallas Love Field – San Diego International Airport | 1,899 | 20.4 min | 50.0% | 50 |
| CMH DEN John Glenn Columbus International Airport – Denver International Airport | 1,853 | 27.7 min | 66.0% | 50 |
| DCA MCI Ronald Reagan Washington National Airport – Kansas City International Airport | 1,524 | -3.1 min | 95.2% | 42 |
| BNA FLL Nashville International Airport – Fort Lauderdale Hollywood International Airport | 1,278 | 6.4 min | 85.3% | 34 |
| ELP DEN El Paso International Airport – Denver International Airport | 908 | 25.7 min | 65.6% | 33 |
| ONT SMF Ontario International Airport – Sacramento International Airport | 627 | 22.0 min | 58.1% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 82.4% | 0 |
| November 2024 | 47 | 45 | 77.8% | 2 |
| December 2024 | 63 | 63 | 76.2% | 0 |
| January 2025 | 32 | 32 | 68.8% | 0 |
| February 2025 | 19 | 19 | 57.9% | 0 |
| March 2025 | 42 | 41 | 78.1% | 1 |
| April 2025 | 33 | 33 | 66.7% | 0 |
| May 2025 | 31 | 31 | 58.1% | 0 |
| June 2025 | 40 | 40 | 62.5% | 0 |
| July 2025 | 44 | 44 | 54.6% | 0 |
| August 2025 | 32 | 32 | 75.0% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 41 | 41 | 58.5% | 0 |
| November 2025 | 27 | 26 | 88.5% | 1 |
| December 2025 | 39 | 39 | 74.4% | 0 |
| January 2026 | 32 | 32 | 62.5% | 0 |
| February 2026 | 34 | 34 | 47.1% | 0 |
| March 2026 | 25 | 24 | 58.3% | 1 |
| April 2026 | 28 | 28 | 85.7% | 0 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |