WN1582
WN1582 (Southwest Airlines) is a multi-stop service on 26 routes, busiest Chicago to Denver. Of 590 departures recorded from October 2024 to July 2026, 87.2% left on time, according to the US BTS.
- On-time departures87.2%of 590 flights
- Average delay5.2 min
- July 20268▼ 52.9%vs July 2025
- Cancelled0.9%
- Legs flown under this number26
according to the US BTS · Oct 12, 2024 → Jul 26, 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 | 30 | 36 | ▲ 20.0% |
| February | 28 | 33 | ▲ 17.9% |
| March | 43 | 32 | ▼ 25.6% |
| April | 25 | 33 | ▲ 32.0% |
| May | 23 | 36 | ▲ 56.5% |
| June | 18 | 11 | ▼ 38.9% |
| July | 17 | 8 | ▼ 52.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 31 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 184 | 189 | ▲ 2.7% |
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 | 100.0% | 97.1% | ▼ 2.9% |
| February | 92.3% | 90.9% | ▼ 1.5% |
| March | 97.7% | 81.3% | ▼ 16.8% |
| April | 76.0% | 87.9% | ▲ 15.6% |
| May | 78.3% | 75.0% | ▼ 4.2% |
| June | 44.4% | 90.9% | ▲ 104.6% |
| July | 66.7% | 100.0% | ▲ 50.0% |
| August | 90.3% | – | – |
| September | 100.0% | – | – |
| October | 73.3% | – | in progress |
| November | 96.8% | – | – |
| December | 83.9% | – | – |
| Year-to-date average (Jan–Jul) | 79.3% | 89.0% | ▲ 12.2% |
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 | 1 | – |
| February | 2 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 1 | ▼ 75.0% |
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 99.2% 585
- Cancelled 0.8% 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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ORD DEN Chicago O'Hare International Airport – Denver International Airport | 1,426 | -0.6 min | 95.2% | 105 |
| SAN TPA San Diego International Airport – Tampa International Airport | 3,352 | 10.8 min | 79.3% | 58 |
| BUR SMF Hollywood Burbank/Bob Hope Airport – Sacramento International Airport | 577 | -4.5 min | 98.3% | 58 |
| SAN OAK San Diego International Airport – Oakland San Francisco Bay Airport | 718 | -3.8 min | 98.2% | 55 |
| TUL HOU Tulsa International Airport – William P. Hobby Airport | 731 | -3.0 min | 97.8% | 46 |
| OAK ONT Oakland San Francisco Bay Airport – Ontario International Airport | 582 | 9.6 min | 77.5% | 40 |
| BWI AUS Baltimore/Washington International Thurgood Marshall Airport – Austin Bergstrom International Airport | 2,156 | 43.6 min | 50.0% | 36 |
| MCO PIT Orlando International Airport – Pittsburgh International Airport | 1,345 | -2.1 min | 97.0% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 89.5% | 0 |
| November 2024 | 18 | 18 | 88.9% | 0 |
| December 2024 | 27 | 27 | 96.3% | 0 |
| January 2025 | 30 | 30 | 100.0% | 0 |
| February 2025 | 28 | 26 | 92.3% | 2 |
| March 2025 | 43 | 43 | 97.7% | 0 |
| April 2025 | 25 | 25 | 76.0% | 0 |
| May 2025 | 23 | 23 | 78.3% | 0 |
| June 2025 | 18 | 18 | 44.4% | 0 |
| July 2025 | 17 | 15 | 66.7% | 2 |
| August 2025 | 31 | 31 | 90.3% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 30 | 30 | 73.3% | 0 |
| November 2025 | 31 | 31 | 96.8% | 0 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 36 | 35 | 97.1% | 1 |
| February 2026 | 33 | 33 | 90.9% | 0 |
| March 2026 | 32 | 32 | 81.3% | 0 |
| April 2026 | 33 | 33 | 87.9% | 0 |
| May 2026 | 36 | 36 | 75.0% | 0 |
| June 2026 | 11 | 11 | 90.9% | 0 |
| July 2026 | 8 | 8 | 100.0% | 0 |