WN3986
WN3986 (Southwest Airlines) is a multi-stop service on 19 routes, busiest Bozeman to Denver. Of 373 departures recorded from October 2024 to July 2026, 71.0% left on time, according to the US BTS.
- On-time departures71.0%of 373 flights
- Average delay14.0 min
- July 202630▼ 21.1%vs July 2025
- Cancelled1.9%
- Legs flown under this number19
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 | 25 | 4 | ▼ 84.0% |
| February | 16 | – | – |
| March | 7 | 23 | ▲ 228.6% |
| April | 4 | 29 | ▲ 625.0% |
| May | 4 | 30 | ▲ 650.0% |
| June | 35 | 30 | ▼ 14.3% |
| July | 38 | 30 | ▼ 21.1% |
| August | 6 | – | – |
| September | – | – | – |
| October | 22 | – | in progress |
| November | 17 | – | – |
| December | 15 | – | – |
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 | 87.0% | 75.0% | ▼ 13.8% |
| February | 68.8% | – | – |
| March | 57.1% | 61.9% | ▲ 8.3% |
| April | 75.0% | 82.1% | ▲ 9.5% |
| May | 25.0% | 66.7% | ▲ 166.7% |
| June | 54.3% | 83.3% | ▲ 53.5% |
| July | 50.0% | 90.0% | ▲ 80.0% |
| August | 83.3% | – | – |
| September | – | – | – |
| October | 72.7% | – | in progress |
| November | 46.7% | – | – |
| December | 46.7% | – | – |
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 periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 2 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| 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 98.1% 366
- Cancelled 1.9% 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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BZN DEN Bozeman Yellowstone International Airport – Denver International Airport | 844 | 25.1 min | 58.3% | 60 |
| STL TPA St. Louis Lambert International Airport – Tampa International Airport | 1,400 | 5.6 min | 87.7% | 57 |
| RDU BWI Raleigh-Durham International Airport – Baltimore/Washington International Thurgood Marshall Airport | 411 | 15.3 min | 75.5% | 49 |
| ONT OAK Ontario International Airport – Oakland San Francisco Bay Airport | 582 | 22.6 min | 48.5% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 8 | 8 | 100.0% | 0 |
| December 2024 | 10 | 10 | 100.0% | 0 |
| January 2025 | 25 | 23 | 87.0% | 2 |
| February 2025 | 16 | 16 | 68.8% | 0 |
| March 2025 | 7 | 7 | 57.1% | 0 |
| April 2025 | 4 | 4 | 75.0% | 0 |
| May 2025 | 4 | 4 | 25.0% | 0 |
| June 2025 | 35 | 35 | 54.3% | 0 |
| July 2025 | 38 | 38 | 50.0% | 0 |
| August 2025 | 6 | 6 | 83.3% | 0 |
| October 2025 | 22 | 22 | 72.7% | 0 |
| November 2025 | 17 | 15 | 46.7% | 2 |
| December 2025 | 15 | 15 | 46.7% | 0 |
| January 2026 | 4 | 4 | 75.0% | 0 |
| March 2026 | 23 | 21 | 61.9% | 2 |
| April 2026 | 29 | 28 | 82.1% | 1 |
| May 2026 | 30 | 30 | 66.7% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 30 | 30 | 90.0% | 0 |