WN3612
WN3612 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Dallas to Nashville. Of 505 departures recorded from October 2024 to July 2026, 76.7% left on time, according to the US BTS.
- On-time departures76.7%of 505 flights
- Average delay13.2 min
- July 20264▼ 91.1%vs July 2025
- Cancelled1.4%
- Legs flown under this number24
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 | 30 | 25 | ▼ 16.7% |
| February | 18 | 27 | ▲ 50.0% |
| March | 4 | 28 | ▲ 600.0% |
| April | 23 | 20 | ▼ 13.0% |
| May | 31 | 18 | ▼ 41.9% |
| June | 40 | 6 | ▼ 85.0% |
| July | 45 | 4 | ▼ 91.1% |
| August | 19 | – | – |
| September | 16 | – | – |
| October | 21 | – | in progress |
| November | 29 | – | – |
| December | 24 | – | – |
| Year to date (Jan–Jul) | 191 | 128 | ▼ 33.0% |
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 | 57.1% | 79.2% | ▲ 38.6% |
| February | 83.3% | 81.5% | ▼ 2.2% |
| March | 100.0% | 78.6% | ▼ 21.4% |
| April | 87.0% | 70.0% | ▼ 19.5% |
| May | 90.3% | 66.7% | ▼ 26.2% |
| June | 77.5% | 83.3% | ▲ 7.5% |
| July | 58.1% | 100.0% | ▲ 72.0% |
| August | 84.2% | – | – |
| September | 93.8% | – | – |
| October | 100.0% | – | in progress |
| November | 65.5% | – | – |
| December | 70.8% | – | – |
| Year-to-date average (Jan–Jul) | 79.1% | 79.9% | ▲ 1.1% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 1 | ▼ 75.0% |
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 98.6% 498
- Cancelled 1.4% 7
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DAL BNA Dallas Love Field – Nashville International Airport | 1,000 | 17.1 min | 73.5% | 101 |
| MDW RSW Chicago Midway International Airport – Southwest Florida International Airport | 1,782 | 2.9 min | 89.7% | 58 |
| SMF AUS Sacramento International Airport – Austin Bergstrom International Airport | 2,380 | 8.6 min | 82.0% | 50 |
| DAL SLC Dallas Love Field – Salt Lake City International Airport | 1,607 | 6.9 min | 76.7% | 43 |
| ROC BWI Frederick Douglass Greater Rochester International Airport – Baltimore/Washington International Thurgood Marshall Airport | 447 | 48.4 min | 40.6% | 34 |
| HOU SDF William P. Hobby Airport – Louisville Muhammad Ali International Airport | 1,292 | 20.8 min | 61.8% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 11 | 100.0% | 1 |
| November 2024 | 29 | 28 | 85.7% | 1 |
| December 2024 | 36 | 36 | 61.1% | 0 |
| January 2025 | 30 | 28 | 57.1% | 2 |
| February 2025 | 18 | 18 | 83.3% | 0 |
| March 2025 | 4 | 4 | 100.0% | 0 |
| April 2025 | 23 | 23 | 87.0% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 40 | 40 | 77.5% | 0 |
| July 2025 | 45 | 43 | 58.1% | 2 |
| August 2025 | 19 | 19 | 84.2% | 0 |
| September 2025 | 16 | 16 | 93.8% | 0 |
| October 2025 | 21 | 21 | 100.0% | 0 |
| November 2025 | 29 | 29 | 65.5% | 0 |
| December 2025 | 24 | 24 | 70.8% | 0 |
| January 2026 | 25 | 24 | 79.2% | 1 |
| February 2026 | 27 | 27 | 81.5% | 0 |
| March 2026 | 28 | 28 | 78.6% | 0 |
| April 2026 | 20 | 20 | 70.0% | 0 |
| May 2026 | 18 | 18 | 66.7% | 0 |
| June 2026 | 6 | 6 | 83.3% | 0 |
| July 2026 | 4 | 4 | 100.0% | 0 |