WN4614
WN4614 (Southwest Airlines) is a multi-stop service on 16 routes, busiest Salt Lake City to Denver. Of 327 departures recorded from October 2024 to July 2026, 79.6% left on time, according to the US BTS.
- On-time departures79.6%of 327 flights
- Average delay10.7 min
- July 202630▼ 3.2%vs July 2025
- Cancelled1.2%
- Legs flown under this number16
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 29 | – |
| February | – | 32 | – |
| March | 4 | 17 | ▲ 325.0% |
| April | 1 | 24 | ▲ 2,300.0% |
| May | – | 26 | – |
| June | 26 | 30 | ▲ 15.4% |
| July | 31 | 30 | ▼ 3.2% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | 18 | – | in progress |
| November | 28 | – | – |
| December | 10 | – | – |
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 periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 86.2% | – |
| February | – | 71.9% | – |
| March | 100.0% | 64.7% | ▼ 35.3% |
| April | 100.0% | 75.0% | ▼ 25.0% |
| May | – | 73.1% | – |
| June | 88.5% | 63.3% | ▼ 28.4% |
| July | 90.0% | 71.4% | ▼ 20.6% |
| August | 83.3% | – | – |
| September | 100.0% | – | – |
| October | 94.4% | – | in progress |
| November | 89.3% | – | – |
| December | 100.0% | – | – |
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 periods16 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 2 | ▲ 100.0% |
| August | 1 | – | – |
| 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% 323
- Cancelled 1.2% 4
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SLC DEN Salt Lake City International Airport – Denver International Airport | 628 | 8.7 min | 89.8% | 61 |
| STL BWI St. Louis Lambert International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,185 | 16.8 min | 69.1% | 57 |
| SLC LAS Salt Lake City International Airport – Harry Reid International Airport | 592 | 7.6 min | 81.8% | 55 |
| LAS OAK Harry Reid International Airport – Oakland San Francisco Bay Airport | 654 | 14.2 min | 70.0% | 50 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 66.7% | 0 |
| December 2024 | 1 | 1 | 0.0% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 26 | 26 | 88.5% | 0 |
| July 2025 | 31 | 30 | 90.0% | 1 |
| August 2025 | 7 | 6 | 83.3% | 1 |
| September 2025 | 4 | 4 | 100.0% | 0 |
| October 2025 | 18 | 18 | 94.4% | 0 |
| November 2025 | 28 | 28 | 89.3% | 0 |
| December 2025 | 10 | 10 | 100.0% | 0 |
| January 2026 | 29 | 29 | 86.2% | 0 |
| February 2026 | 32 | 32 | 71.9% | 0 |
| March 2026 | 17 | 17 | 64.7% | 0 |
| April 2026 | 24 | 24 | 75.0% | 0 |
| May 2026 | 26 | 26 | 73.1% | 0 |
| June 2026 | 30 | 30 | 63.3% | 0 |
| July 2026 | 30 | 28 | 71.4% | 2 |