WN4917
WN4917 (Southwest Airlines) is a multi-stop service on 6 routes, busiest Denver to Tucson. Of 141 departures recorded from October 2024 to July 2026, 80.0% left on time, according to the US BTS.
- On-time departures80.0%of 141 flights
- Average delay7.9 min
- July 202630
- Cancelled0.7%
- Legs flown under this number6
Recorded departures by month
Short series — WN4917 has only 11 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 9 | – | – |
| February | 14 | 10 | ▼ 28.6% |
| March | 2 | 1 | ▼ 50.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | 27 | – |
| July | – | 30 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Short series — WN4917 has only 11 months so far. Enough to show the level now, not enough to read a trend.
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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | – | – |
| February | 78.6% | 77.8% | ▼ 1.0% |
| March | 100.0% | 100.0% | 0.0% |
| April | – | – | – |
| May | – | – | – |
| June | – | 66.7% | – |
| July | – | 66.7% | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Short series — WN4917 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Short series — WN4917 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
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 99.3% 140
- Cancelled 0.7% 1
Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN TUS Denver International Airport – Tucson International Airport | 1,029 | 1.5 min | 89.8% | 59 |
| BOS STL Boston Logan International Airport – St. Louis Lambert International Airport | 1,680 | 15.8 min | 66.7% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 7 | 7 | 85.7% | 0 |
| November 2024 | 22 | 22 | 90.9% | 0 |
| December 2024 | 18 | 18 | 94.4% | 0 |
| January 2025 | 9 | 9 | 100.0% | 0 |
| February 2025 | 14 | 14 | 78.6% | 0 |
| March 2025 | 2 | 2 | 100.0% | 0 |
| November 2025 | 1 | 1 | 100.0% | 0 |
| February 2026 | 10 | 9 | 77.8% | 1 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 27 | 27 | 66.7% | 0 |
| July 2026 | 30 | 30 | 66.7% | 0 |