WN2571
WN2571 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Denver to Ontario. Of 500 departures recorded from October 2024 to July 2026, 71.6% left on time, according to the US BTS.
- On-time departures71.6%of 500 flights
- Average delay16.8 min
- July 202640▲ 48.1%vs July 2025
- Cancelled0.8%
- Legs flown under this number23
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 31 | ▲ 933.3% |
| February | 10 | 21 | ▲ 110.0% |
| March | 29 | 30 | ▲ 3.4% |
| April | 31 | 26 | ▼ 16.1% |
| May | 31 | 26 | ▼ 16.1% |
| June | 26 | 36 | ▲ 38.5% |
| July | 27 | 40 | ▲ 48.1% |
| August | 11 | – | – |
| September | 8 | – | – |
| October | 25 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 157 | 210 | ▲ 33.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
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 | 100.0% | 87.1% | ▼ 12.9% |
| February | 70.0% | 90.0% | ▲ 28.6% |
| March | 72.4% | 93.3% | ▲ 28.9% |
| April | 73.3% | 73.1% | ▼ 0.3% |
| May | 77.4% | 46.2% | ▼ 40.4% |
| June | 46.2% | 68.6% | ▲ 48.6% |
| July | 33.3% | 72.5% | ▲ 117.5% |
| August | 45.5% | – | – |
| September | 62.5% | – | – |
| October | 84.0% | – | in progress |
| November | 79.3% | – | – |
| December | 67.7% | – | – |
| Year-to-date average (Jan–Jul) | 67.5% | 75.8% | ▲ 12.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 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 99.2% 496
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 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 ONT Denver International Airport – Ontario International Airport | 1,316 | 11.6 min | 73.0% | 63 |
| MSY BNA Louis Armstrong New Orleans International Airport – Nashville International Airport | 759 | 12.0 min | 80.7% | 58 |
| LAS BUR Harry Reid International Airport – Hollywood Burbank/Bob Hope Airport | 359 | 3.7 min | 87.0% | 55 |
| MCI MDW Kansas City International Airport – Chicago Midway International Airport | 650 | 13.3 min | 67.4% | 50 |
| DEN LAS Denver International Airport – Harry Reid International Airport | 1,009 | 63.4 min | 34.9% | 43 |
| IND DEN Indianapolis International Airport – Denver International Airport | 1,568 | 5.6 min | 93.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 24 | 91.7% | 1 |
| November 2024 | 4 | 4 | 75.0% | 0 |
| January 2025 | 3 | 3 | 100.0% | 0 |
| February 2025 | 10 | 10 | 70.0% | 0 |
| March 2025 | 29 | 29 | 72.4% | 0 |
| April 2025 | 31 | 30 | 73.3% | 1 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 26 | 26 | 46.2% | 0 |
| July 2025 | 27 | 27 | 33.3% | 0 |
| August 2025 | 11 | 11 | 45.5% | 0 |
| September 2025 | 8 | 8 | 62.5% | 0 |
| October 2025 | 25 | 25 | 84.0% | 0 |
| November 2025 | 29 | 29 | 79.3% | 0 |
| December 2025 | 31 | 31 | 67.7% | 0 |
| January 2026 | 31 | 31 | 87.1% | 0 |
| February 2026 | 21 | 20 | 90.0% | 1 |
| March 2026 | 30 | 30 | 93.3% | 0 |
| April 2026 | 26 | 26 | 73.1% | 0 |
| May 2026 | 26 | 26 | 46.2% | 0 |
| June 2026 | 36 | 35 | 68.6% | 1 |
| July 2026 | 40 | 40 | 72.5% | 0 |