WN406
WN406 (Southwest Airlines) is a multi-stop service on 50 routes, busiest Atlanta to Austin. Of 779 departures recorded from October 2024 to July 2026, 75.2% left on time, according to the US BTS.
- On-time departures75.2%of 779 flights
- Average delay13.4 min
- July 202654▲ 575.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number50
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 | 32 | 23 | ▼ 28.1% |
| February | 28 | 35 | ▲ 25.0% |
| March | 31 | 27 | ▼ 12.9% |
| April | 22 | 60 | ▲ 172.7% |
| May | 23 | 69 | ▲ 200.0% |
| June | 10 | 54 | ▲ 440.0% |
| July | 8 | 54 | ▲ 575.0% |
| August | 47 | – | – |
| September | 48 | – | – |
| October | 37 | – | in progress |
| November | 34 | – | – |
| December | 30 | – | – |
| Year to date (Jan–Jul) | 154 | 322 | ▲ 109.1% |
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 | 90.0% | 95.7% | ▲ 6.3% |
| February | 100.0% | 74.3% | ▼ 25.7% |
| March | 77.4% | 70.4% | ▼ 9.1% |
| April | 90.5% | 58.3% | ▼ 35.5% |
| May | 78.3% | 58.8% | ▼ 24.8% |
| June | 100.0% | 57.4% | ▼ 42.6% |
| July | 75.0% | 72.2% | ▼ 3.7% |
| August | 68.1% | – | – |
| September | 87.5% | – | – |
| October | 67.6% | – | in progress |
| November | 64.7% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 87.3% | 69.6% | ▼ 20.3% |
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 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
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 99.5% 775
- Cancelled 0.5% 4
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL AUS Hartsfield Jackson Atlanta International Airport – Austin Bergstrom International Airport | 1,305 | 1.1 min | 93.7% | 97 |
| DEN BUR Denver International Airport – Hollywood Burbank/Bob Hope Airport | 1,366 | 12.5 min | 69.4% | 62 |
| STL ATL St. Louis Lambert International Airport – Hartsfield Jackson Atlanta International Airport | 779 | 0.8 min | 92.9% | 42 |
| DAL LGA Dallas Love Field – LaGuardia Airport | 2,219 | 49.6 min | 34.2% | 42 |
| PHX OAK Phoenix Sky Harbor International Airport – Oakland San Francisco Bay Airport | 1,039 | 17.9 min | 75.0% | 33 |
| AUS SMF Austin Bergstrom International Airport – Sacramento International Airport | 2,380 | 46.6 min | 39.4% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 26 | 26 | 76.9% | 0 |
| November 2024 | 45 | 45 | 95.6% | 0 |
| December 2024 | 36 | 36 | 94.4% | 0 |
| January 2025 | 32 | 30 | 90.0% | 2 |
| February 2025 | 28 | 28 | 100.0% | 0 |
| March 2025 | 31 | 31 | 77.4% | 0 |
| April 2025 | 22 | 21 | 90.5% | 1 |
| May 2025 | 23 | 23 | 78.3% | 0 |
| June 2025 | 10 | 10 | 100.0% | 0 |
| July 2025 | 8 | 8 | 75.0% | 0 |
| August 2025 | 47 | 47 | 68.1% | 0 |
| September 2025 | 48 | 48 | 87.5% | 0 |
| October 2025 | 37 | 37 | 67.6% | 0 |
| November 2025 | 34 | 34 | 64.7% | 0 |
| December 2025 | 30 | 30 | 70.0% | 0 |
| January 2026 | 23 | 23 | 95.7% | 0 |
| February 2026 | 35 | 35 | 74.3% | 0 |
| March 2026 | 27 | 27 | 70.4% | 0 |
| April 2026 | 60 | 60 | 58.3% | 0 |
| May 2026 | 69 | 68 | 58.8% | 1 |
| June 2026 | 54 | 54 | 57.4% | 0 |
| July 2026 | 54 | 54 | 72.2% | 0 |