WN3818
WN3818 (Southwest Airlines) is a multi-stop service on 24 routes, busiest Austin to New Orleans. Of 455 departures recorded from October 2024 to July 2026, 73.1% left on time, according to the US BTS.
- On-time departures73.1%of 455 flights
- Average delay13.6 min
- July 202622▼ 58.5%vs July 2025
- Cancelled0.4%
- Legs flown under this number24
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 | 3 | 3 | 0.0% |
| February | – | 1 | – |
| March | 34 | 27 | ▼ 20.6% |
| April | 57 | 16 | ▼ 71.9% |
| May | 63 | 14 | ▼ 77.8% |
| June | 53 | 21 | ▼ 60.4% |
| July | 53 | 22 | ▼ 58.5% |
| August | 6 | – | – |
| September | – | – | – |
| October | 8 | – | in progress |
| November | 26 | – | – |
| December | 22 | – | – |
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 | 33.3% | 66.7% | ▲ 100.0% |
| February | – | 100.0% | – |
| March | 73.5% | 96.3% | ▲ 31.0% |
| April | 79.0% | 100.0% | ▲ 26.7% |
| May | 74.6% | 85.7% | ▲ 14.9% |
| June | 60.4% | 71.4% | ▲ 18.3% |
| July | 67.9% | 81.8% | ▲ 20.5% |
| August | 16.7% | – | – |
| September | – | – | – |
| October | 37.5% | – | in progress |
| November | 70.8% | – | – |
| December | 86.4% | – | – |
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 | 0 | 0 | – |
| February | – | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| 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 99.6% 453
- Cancelled 0.4% 2
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| AUS MSY Austin Bergstrom International Airport – Louis Armstrong New Orleans International Airport | 712 | 31.8 min | 55.0% | 60 |
| LAS LGB Harry Reid International Airport – Long Beach International Airport | 372 | 20.9 min | 67.2% | 58 |
| SMF SAN Sacramento International Airport – San Diego International Airport | 773 | 8.6 min | 76.5% | 34 |
| PHX HOU Phoenix Sky Harbor International Airport – William P. Hobby Airport | 1,638 | 14.2 min | 72.7% | 33 |
| BNA STL Nashville International Airport – St. Louis Lambert International Airport | 437 | -0.7 min | 97.0% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 50.0% | 0 |
| November 2024 | 5 | 5 | 60.0% | 0 |
| December 2024 | 11 | 11 | 63.6% | 0 |
| January 2025 | 3 | 3 | 33.3% | 0 |
| March 2025 | 34 | 34 | 73.5% | 0 |
| April 2025 | 57 | 57 | 79.0% | 0 |
| May 2025 | 63 | 63 | 74.6% | 0 |
| June 2025 | 53 | 53 | 60.4% | 0 |
| July 2025 | 53 | 53 | 67.9% | 0 |
| August 2025 | 6 | 6 | 16.7% | 0 |
| October 2025 | 8 | 8 | 37.5% | 0 |
| November 2025 | 26 | 24 | 70.8% | 2 |
| December 2025 | 22 | 22 | 86.4% | 0 |
| January 2026 | 3 | 3 | 66.7% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 27 | 27 | 96.3% | 0 |
| April 2026 | 16 | 16 | 100.0% | 0 |
| May 2026 | 14 | 14 | 85.7% | 0 |
| June 2026 | 21 | 21 | 71.4% | 0 |
| July 2026 | 22 | 22 | 81.8% | 0 |