WN2643
WN2643 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Denver to Los Angeles. Of 534 departures recorded from October 2024 to July 2026, 66.0% left on time, according to the US BTS.
- On-time departures66.0%of 534 flights
- Average delay20.6 min
- July 20265▼ 85.7%vs July 2025
- Cancelled0.9%
- Legs flown under this number22
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 | 29 | 9 | ▼ 69.0% |
| February | 21 | 8 | ▼ 61.9% |
| March | 30 | 32 | ▲ 6.7% |
| April | 30 | 31 | ▲ 3.3% |
| May | 30 | 31 | ▲ 3.3% |
| June | 34 | 7 | ▼ 79.4% |
| July | 35 | 5 | ▼ 85.7% |
| August | 27 | – | – |
| September | 26 | – | – |
| October | 4 | – | in progress |
| November | 14 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 209 | 123 | ▼ 41.1% |
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 | 67.9% | 75.0% | ▲ 10.5% |
| February | 81.0% | 62.5% | ▼ 22.8% |
| March | 73.3% | 46.9% | ▼ 36.1% |
| April | 93.3% | 61.3% | ▼ 34.3% |
| May | 96.6% | 22.6% | ▼ 76.6% |
| June | 52.9% | 57.1% | ▲ 7.9% |
| July | 60.0% | 40.0% | ▼ 33.3% |
| August | 48.2% | – | – |
| September | 80.8% | – | – |
| October | 0.0% | – | in progress |
| November | 69.2% | – | – |
| December | 60.0% | – | – |
| Year-to-date average (Jan–Jul) | 75.0% | 52.2% | ▼ 30.4% |
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 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.1% 529
- Cancelled 0.9% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 26, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN LAX Denver International Airport – Los Angeles International Airport | 1,385 | 19.6 min | 71.0% | 93 |
| DEN MSY Denver International Airport – Louis Armstrong New Orleans International Airport | 1,708 | 28.2 min | 56.5% | 85 |
| DCA ATL Ronald Reagan Washington National Airport – Hartsfield Jackson Atlanta International Airport | 880 | 38.8 min | 37.9% | 58 |
| BWI STL Baltimore/Washington International Thurgood Marshall Airport – St. Louis Lambert International Airport | 1,185 | -1.3 min | 98.2% | 57 |
| DEN SEA Denver International Airport – Seattle–Tacoma International Airport | 1,645 | 19.5 min | 58.5% | 41 |
| ATL DEN Hartsfield Jackson Atlanta International Airport – Denver International Airport | 1,927 | 9.7 min | 80.6% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 6 | 6 | 83.3% | 0 |
| November 2024 | 43 | 43 | 90.7% | 0 |
| December 2024 | 57 | 56 | 64.3% | 1 |
| January 2025 | 29 | 28 | 67.9% | 1 |
| February 2025 | 21 | 21 | 81.0% | 0 |
| March 2025 | 30 | 30 | 73.3% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 30 | 29 | 96.6% | 1 |
| June 2025 | 34 | 34 | 52.9% | 0 |
| July 2025 | 35 | 35 | 60.0% | 0 |
| August 2025 | 27 | 27 | 48.2% | 0 |
| September 2025 | 26 | 26 | 80.8% | 0 |
| October 2025 | 4 | 4 | 0.0% | 0 |
| November 2025 | 14 | 13 | 69.2% | 1 |
| December 2025 | 25 | 25 | 60.0% | 0 |
| January 2026 | 9 | 8 | 75.0% | 1 |
| February 2026 | 8 | 8 | 62.5% | 0 |
| March 2026 | 32 | 32 | 46.9% | 0 |
| April 2026 | 31 | 31 | 61.3% | 0 |
| May 2026 | 31 | 31 | 22.6% | 0 |
| June 2026 | 7 | 7 | 57.1% | 0 |
| July 2026 | 5 | 5 | 40.0% | 0 |