WN3980
WN3980 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Denver to Birmingham. Of 394 departures recorded from October 2024 to July 2026, 66.3% left on time, according to the US BTS.
- On-time departures66.3%of 394 flights
- Average delay22.2 min
- July 202616▼ 48.4%vs July 2025
- Cancelled1.3%
- Legs flown under this number22
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 | 17 | 26 | ▲ 52.9% |
| February | 25 | 28 | ▲ 12.0% |
| March | 8 | 35 | ▲ 337.5% |
| April | 36 | 10 | ▼ 72.2% |
| May | 50 | 9 | ▼ 82.0% |
| June | 31 | 17 | ▼ 45.2% |
| July | 31 | 16 | ▼ 48.4% |
| August | 4 | – | – |
| September | – | – | – |
| October | 38 | – | in progress |
| November | 2 | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 198 | 141 | ▼ 28.8% |
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 | 81.3% | 65.4% | ▼ 19.5% |
| February | 72.0% | 57.1% | ▼ 20.6% |
| March | 85.7% | 45.7% | ▼ 46.7% |
| April | 94.3% | 40.0% | ▼ 57.6% |
| May | 86.0% | 77.8% | ▼ 9.6% |
| June | 35.5% | 70.6% | ▲ 99.0% |
| July | 44.8% | 93.8% | ▲ 109.1% |
| August | 75.0% | – | – |
| September | – | – | – |
| October | 47.4% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 71.4% | 64.3% | ▼ 9.9% |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 5 | 0 | ▼ 100.0% |
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 98.7% 389
- Cancelled 1.3% 5
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| DEN BHM Denver International Airport – Birmingham-Shuttlesworth International Airport | 1,740 | 41.9 min | 37.3% | 61 |
| SAN SMF San Diego International Airport – Sacramento International Airport | 773 | 19.6 min | 60.3% | 58 |
| DAL PHX Dallas Love Field – Phoenix Sky Harbor International Airport | 1,412 | 16.2 min | 83.7% | 50 |
| LAS FAT Harry Reid International Airport – Fresno Yosemite International Airport | 416 | 24.8 min | 48.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 100.0% | 0 |
| November 2024 | 1 | 1 | 100.0% | 0 |
| January 2025 | 17 | 16 | 81.3% | 1 |
| February 2025 | 25 | 25 | 72.0% | 0 |
| March 2025 | 8 | 7 | 85.7% | 1 |
| April 2025 | 36 | 35 | 94.3% | 1 |
| May 2025 | 50 | 50 | 86.0% | 0 |
| June 2025 | 31 | 31 | 35.5% | 0 |
| July 2025 | 31 | 29 | 44.8% | 2 |
| August 2025 | 4 | 4 | 75.0% | 0 |
| October 2025 | 38 | 38 | 47.4% | 0 |
| November 2025 | 2 | 2 | 100.0% | 0 |
| January 2026 | 26 | 26 | 65.4% | 0 |
| February 2026 | 28 | 28 | 57.1% | 0 |
| March 2026 | 35 | 35 | 45.7% | 0 |
| April 2026 | 10 | 10 | 40.0% | 0 |
| May 2026 | 9 | 9 | 77.8% | 0 |
| June 2026 | 17 | 17 | 70.6% | 0 |
| July 2026 | 16 | 16 | 93.8% | 0 |