WN4105
WN4105 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Denver to Raleigh. Of 460 departures recorded from October 2024 to July 2026, 71.9% left on time, according to the US BTS.
- On-time departures71.9%of 460 flights
- Average delay17.2 min
- July 202621▲ 162.5%vs July 2025
- Cancelled0.2%
- Legs flown under this number18
Recorded departures by month
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 | 31 | 5 | ▼ 83.9% |
| February | 20 | 4 | ▼ 80.0% |
| March | 4 | 28 | ▲ 600.0% |
| April | 23 | 19 | ▼ 17.4% |
| May | 30 | 19 | ▼ 36.7% |
| June | 12 | 21 | ▲ 75.0% |
| July | 8 | 21 | ▲ 162.5% |
| August | 36 | – | – |
| September | 39 | – | – |
| October | 5 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 128 | 117 | ▼ 8.6% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 61.3% | 40.0% | ▼ 34.7% |
| February | 60.0% | 100.0% | ▲ 66.7% |
| March | 75.0% | 92.6% | ▲ 23.5% |
| April | 91.3% | 52.6% | ▼ 42.4% |
| May | 80.0% | 52.6% | ▼ 34.2% |
| June | 75.0% | 38.1% | ▼ 49.2% |
| July | 62.5% | 52.4% | ▼ 16.2% |
| August | 86.1% | – | – |
| September | 92.3% | – | – |
| October | 40.0% | – | in progress |
| November | 67.9% | – | – |
| December | 61.3% | – | – |
| Year-to-date average (Jan–Jul) | 72.2% | 61.2% | ▼ 15.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 1 |
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 99.8% 459
- Cancelled 0.2% 1
Share of all recorded flights in the period, all legs. · Oct 13, 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 RDU Denver International Airport – Raleigh-Durham International Airport | 2,307 | 19.3 min | 69.0% | 113 |
| PIT TPA Pittsburgh International Airport – Tampa International Airport | 1,408 | 33.1 min | 62.5% | 64 |
| MDW MCI Chicago Midway International Airport – Kansas City International Airport | 650 | 10.9 min | 82.5% | 57 |
| PHX SNA Phoenix Sky Harbor International Airport – John Wayne Orange County International Airport | 544 | 2.6 min | 92.0% | 50 |
| SMF DEN Sacramento International Airport – Denver International Airport | 1,460 | 24.4 min | 43.9% | 41 |
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | -3.1 min | 93.8% | 33 |
| SAN PHX San Diego International Airport – Phoenix Sky Harbor International Airport | 489 | 31.9 min | 43.8% | 32 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 16 | 16 | 87.5% | 0 |
| November 2024 | 29 | 29 | 69.0% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 31 | 61.3% | 0 |
| February 2025 | 20 | 20 | 60.0% | 0 |
| March 2025 | 4 | 4 | 75.0% | 0 |
| April 2025 | 23 | 23 | 91.3% | 0 |
| May 2025 | 30 | 30 | 80.0% | 0 |
| June 2025 | 12 | 12 | 75.0% | 0 |
| July 2025 | 8 | 8 | 62.5% | 0 |
| August 2025 | 36 | 36 | 86.1% | 0 |
| September 2025 | 39 | 39 | 92.3% | 0 |
| October 2025 | 5 | 5 | 40.0% | 0 |
| November 2025 | 28 | 28 | 67.9% | 0 |
| December 2025 | 31 | 31 | 61.3% | 0 |
| January 2026 | 5 | 5 | 40.0% | 0 |
| February 2026 | 4 | 4 | 100.0% | 0 |
| March 2026 | 28 | 27 | 92.6% | 1 |
| April 2026 | 19 | 19 | 52.6% | 0 |
| May 2026 | 19 | 19 | 52.6% | 0 |
| June 2026 | 21 | 21 | 38.1% | 0 |
| July 2026 | 21 | 21 | 52.4% | 0 |