WN3845
WN3845 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Kansas City to Denver. Of 483 departures recorded from October 2024 to July 2026, 70.0% left on time, according to the US BTS.
- On-time departures70.0%of 483 flights
- Average delay21.0 min
- July 202655▲ 77.4%vs July 2025
- Cancelled1.5%
- Legs flown under this number21
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 | 3 | 14 | ▲ 366.7% |
| February | 10 | 22 | ▲ 120.0% |
| March | 18 | 29 | ▲ 61.1% |
| April | 19 | 30 | ▲ 57.9% |
| May | 23 | 30 | ▲ 30.4% |
| June | 28 | 54 | ▲ 92.9% |
| July | 31 | 55 | ▲ 77.4% |
| August | 4 | – | – |
| September | – | – | – |
| October | 26 | – | in progress |
| November | 29 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 132 | 234 | ▲ 77.3% |
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 | 66.7% | 100.0% | ▲ 50.0% |
| February | 50.0% | 86.4% | ▲ 72.7% |
| March | 44.4% | 40.7% | ▼ 8.3% |
| April | 84.2% | 80.0% | ▼ 5.0% |
| May | 100.0% | 90.0% | ▼ 10.0% |
| June | 48.2% | 55.6% | ▲ 15.4% |
| July | 41.4% | 63.6% | ▲ 53.8% |
| August | 50.0% | – | – |
| September | – | – | – |
| October | 84.6% | – | in progress |
| November | 93.1% | – | – |
| December | 82.8% | – | – |
| Year-to-date average (Jan–Jul) | 62.1% | 73.8% | ▲ 18.7% |
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 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 4 | ▲ 33.3% |
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 98.6% 476
- Cancelled 1.4% 7
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
8| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MCI DEN Kansas City International Airport – Denver International Airport | 855 | 48.8 min | 43.1% | 61 |
| ONT SJC Ontario International Airport – Mineta San Jose International Airport | 536 | 30.9 min | 64.9% | 57 |
| BWI BDL Baltimore/Washington International Thurgood Marshall Airport – Bradley International Airport | 455 | 2.7 min | 89.5% | 57 |
| MSY HOU Louis Armstrong New Orleans International Airport – William P. Hobby Airport | 485 | 3.6 min | 87.5% | 56 |
| LAS ONT Harry Reid International Airport – Ontario International Airport | 317 | 39.3 min | 47.6% | 42 |
| HOU LGA William P. Hobby Airport – LaGuardia Airport | 2,295 | -1.8 min | 100.0% | 40 |
| MCO DCA Orlando International Airport – Ronald Reagan Washington National Airport | 1,224 | 42.5 min | 38.7% | 33 |
| TPA BNA Tampa International Airport – Nashville International Airport | 987 | 0.1 min | 92.9% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 83.3% | 0 |
| November 2024 | 5 | 5 | 60.0% | 0 |
| December 2024 | 12 | 12 | 66.7% | 0 |
| January 2025 | 3 | 3 | 66.7% | 0 |
| February 2025 | 10 | 10 | 50.0% | 0 |
| March 2025 | 18 | 18 | 44.4% | 0 |
| April 2025 | 19 | 19 | 84.2% | 0 |
| May 2025 | 23 | 23 | 100.0% | 0 |
| June 2025 | 28 | 27 | 48.2% | 1 |
| July 2025 | 31 | 29 | 41.4% | 2 |
| August 2025 | 4 | 4 | 50.0% | 0 |
| October 2025 | 26 | 26 | 84.6% | 0 |
| November 2025 | 29 | 29 | 93.1% | 0 |
| December 2025 | 29 | 29 | 82.8% | 0 |
| January 2026 | 14 | 12 | 100.0% | 2 |
| February 2026 | 22 | 22 | 86.4% | 0 |
| March 2026 | 29 | 27 | 40.7% | 2 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 30 | 30 | 90.0% | 0 |
| June 2026 | 54 | 54 | 55.6% | 0 |
| July 2026 | 55 | 55 | 63.6% | 0 |