WN4074
WN4074 (Southwest Airlines) is a multi-stop service on 14 routes, busiest Denver to Chicago. Of 420 departures recorded from October 2024 to July 2026, 70.3% left on time, according to the US BTS.
- On-time departures70.3%of 420 flights
- Average delay16.3 min
- July 202644▲ 100.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number14
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 22 | ▼ 26.7% |
| February | 44 | 19 | ▼ 56.8% |
| March | 11 | 3 | ▼ 72.7% |
| April | 1 | 24 | ▲ 2,300.0% |
| May | – | 30 | – |
| June | 18 | 42 | ▲ 133.3% |
| July | 22 | 44 | ▲ 100.0% |
| August | 3 | – | – |
| September | – | – | – |
| October | 4 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 66.7% | 90.9% | ▲ 36.4% |
| February | 61.4% | 73.7% | ▲ 20.1% |
| March | 36.4% | 100.0% | ▲ 175.0% |
| April | 100.0% | 95.8% | ▼ 4.2% |
| May | – | 86.7% | – |
| June | 88.9% | 29.3% | ▼ 67.1% |
| July | 81.8% | 58.1% | ▼ 28.9% |
| August | 100.0% | – | – |
| September | – | – | – |
| October | 0.0% | – | in progress |
| November | 71.4% | – | – |
| December | 90.3% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | – | – | – |
| 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 99.5% 418
- Cancelled 0.5% 2
Share of all recorded flights in the period, all legs. · Oct 15, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN ORD Denver International Airport – Chicago O'Hare International Airport | 1,426 | 19.2 min | 65.0% | 100 |
| PHX HNL Phoenix Sky Harbor International Airport – Daniel K. Inouye International Airport | 4,689 | 6.2 min | 82.5% | 63 |
| SAN HNL San Diego International Airport – Daniel K. Inouye International Airport | 4,201 | 2.1 min | 91.2% | 57 |
| LAS ABQ Harry Reid International Airport – Albuquerque International Sunport | 781 | 37.1 min | 43.9% | 42 |
| ABQ AUS Albuquerque International Sunport – Austin Bergstrom International Airport | 995 | 29.8 min | 40.0% | 41 |
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | 9.6 min | 82.1% | 39 |
| SAN MCO San Diego International Airport – Orlando International Airport | 3,452 | 19.3 min | 85.3% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 85.7% | 0 |
| November 2024 | 12 | 12 | 83.3% | 0 |
| December 2024 | 25 | 25 | 72.0% | 0 |
| January 2025 | 30 | 30 | 66.7% | 0 |
| February 2025 | 44 | 44 | 61.4% | 0 |
| March 2025 | 11 | 11 | 36.4% | 0 |
| April 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 18 | 18 | 88.9% | 0 |
| July 2025 | 22 | 22 | 81.8% | 0 |
| August 2025 | 3 | 3 | 100.0% | 0 |
| October 2025 | 4 | 4 | 0.0% | 0 |
| November 2025 | 28 | 28 | 71.4% | 0 |
| December 2025 | 31 | 31 | 90.3% | 0 |
| January 2026 | 22 | 22 | 90.9% | 0 |
| February 2026 | 19 | 19 | 73.7% | 0 |
| March 2026 | 3 | 3 | 100.0% | 0 |
| April 2026 | 24 | 24 | 95.8% | 0 |
| May 2026 | 30 | 30 | 86.7% | 0 |
| June 2026 | 42 | 41 | 29.3% | 1 |
| July 2026 | 44 | 43 | 58.1% | 1 |