WN4043
WN4043 (Southwest Airlines) is a multi-stop service on 23 routes, busiest Denver to Minneapolis. Of 415 departures recorded from October 2024 to July 2026, 63.7% left on time, according to the US BTS.
- On-time departures63.7%of 415 flights
- Average delay18.7 min
- July 202634▲ 183.3%vs July 2025
- Cancelled1.2%
- 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 periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 1 | ▼ 96.7% |
| February | 20 | 4 | ▼ 80.0% |
| March | 37 | 7 | ▼ 81.1% |
| April | 9 | 25 | ▲ 177.8% |
| May | – | 31 | – |
| June | 12 | 30 | ▲ 150.0% |
| July | 12 | 34 | ▲ 183.3% |
| August | 21 | – | – |
| September | 22 | – | – |
| October | 27 | – | in progress |
| November | 3 | – | – |
| December | 4 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 60.0% | 100.0% | ▲ 66.7% |
| February | 60.0% | 75.0% | ▲ 25.0% |
| March | 86.1% | 71.4% | ▼ 17.0% |
| April | 87.5% | 72.0% | ▼ 17.7% |
| May | – | 32.3% | – |
| June | 41.7% | 44.8% | ▲ 7.6% |
| July | 41.7% | 45.5% | ▲ 9.1% |
| August | 61.9% | – | – |
| September | 59.1% | – | – |
| October | 96.3% | – | in progress |
| November | 100.0% | – | – |
| December | 75.0% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | – | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 98.8% 410
- Cancelled 1.2% 5
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN MSP Denver International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,092 | 10.3 min | 72.7% | 66 |
| RSW MDW Southwest Florida International Airport – Chicago Midway International Airport | 1,782 | 32.7 min | 48.3% | 58 |
| MDW CMH Chicago Midway International Airport – John Glenn Columbus International Airport | 454 | 31.2 min | 47.9% | 50 |
| PHX HOU Phoenix Sky Harbor International Airport – William P. Hobby Airport | 1,638 | 18.3 min | 64.3% | 42 |
| SJC SNA Mineta San Jose International Airport – John Wayne Orange County International Airport | 550 | 20.7 min | 54.3% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 29 | 29 | 62.1% | 0 |
| December 2024 | 37 | 36 | 72.2% | 1 |
| January 2025 | 30 | 30 | 60.0% | 0 |
| February 2025 | 20 | 20 | 60.0% | 0 |
| March 2025 | 37 | 36 | 86.1% | 1 |
| April 2025 | 9 | 8 | 87.5% | 1 |
| June 2025 | 12 | 12 | 41.7% | 0 |
| July 2025 | 12 | 12 | 41.7% | 0 |
| August 2025 | 21 | 21 | 61.9% | 0 |
| September 2025 | 22 | 22 | 59.1% | 0 |
| October 2025 | 27 | 27 | 96.3% | 0 |
| November 2025 | 3 | 3 | 100.0% | 0 |
| December 2025 | 4 | 4 | 75.0% | 0 |
| January 2026 | 1 | 1 | 100.0% | 0 |
| February 2026 | 4 | 4 | 75.0% | 0 |
| March 2026 | 7 | 7 | 71.4% | 0 |
| April 2026 | 25 | 25 | 72.0% | 0 |
| May 2026 | 31 | 31 | 32.3% | 0 |
| June 2026 | 30 | 29 | 44.8% | 1 |
| July 2026 | 34 | 33 | 45.5% | 1 |