WN3139
WN3139 (Southwest Airlines) is a multi-stop service on 22 routes, busiest Austin to Miami. Of 430 departures recorded from October 2024 to July 2026, 72.9% left on time, according to the US BTS.
- On-time departures72.9%of 430 flights
- Average delay15.7 min
- July 202630▲ 500.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number22
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 | 21 | 27 | ▲ 28.6% |
| February | 11 | 25 | ▲ 127.3% |
| March | 11 | 67 | ▲ 509.1% |
| April | 13 | 18 | ▲ 38.5% |
| May | 12 | 5 | ▼ 58.3% |
| June | 7 | 27 | ▲ 285.7% |
| July | 5 | 30 | ▲ 500.0% |
| August | 27 | – | – |
| September | 30 | – | – |
| October | 26 | – | in progress |
| November | 13 | – | – |
| December | 16 | – | – |
| Year to date (Jan–Jul) | 80 | 199 | ▲ 148.8% |
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 | 81.0% | 76.9% | ▼ 5.0% |
| February | 90.9% | 96.0% | ▲ 5.6% |
| March | 100.0% | 32.8% | ▼ 67.2% |
| April | 84.6% | 47.1% | ▼ 44.4% |
| May | 66.7% | 60.0% | ▼ 10.0% |
| June | 85.7% | 92.6% | ▲ 8.0% |
| July | 100.0% | 96.7% | ▼ 3.3% |
| August | 81.5% | – | – |
| September | 96.7% | – | – |
| October | 42.3% | – | in progress |
| November | 92.3% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 87.0% | 71.7% | ▼ 17.5% |
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 | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 2 |
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% 428
- Cancelled 0.5% 2
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 |
|---|---|---|---|---|
| AUS MIA Austin Bergstrom International Airport – Miami International Airport | 1,772 | 18.3 min | 73.3% | 60 |
| SJC BNA Mineta San Jose International Airport – Nashville International Airport | 3,126 | 7.2 min | 89.5% | 57 |
| DEN ATL Denver International Airport – Hartsfield Jackson Atlanta International Airport | 1,927 | 6.6 min | 87.0% | 47 |
| OMA STL Eppley Airfield – St. Louis Lambert International Airport | 549 | 1.3 min | 97.6% | 41 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 58.3% | 0 |
| November 2024 | 11 | 11 | 72.7% | 0 |
| December 2024 | 16 | 16 | 50.0% | 0 |
| January 2025 | 21 | 21 | 81.0% | 0 |
| February 2025 | 11 | 11 | 90.9% | 0 |
| March 2025 | 11 | 11 | 100.0% | 0 |
| April 2025 | 13 | 13 | 84.6% | 0 |
| May 2025 | 12 | 12 | 66.7% | 0 |
| June 2025 | 7 | 7 | 85.7% | 0 |
| July 2025 | 5 | 5 | 100.0% | 0 |
| August 2025 | 27 | 27 | 81.5% | 0 |
| September 2025 | 30 | 30 | 96.7% | 0 |
| October 2025 | 26 | 26 | 42.3% | 0 |
| November 2025 | 13 | 13 | 92.3% | 0 |
| December 2025 | 16 | 16 | 100.0% | 0 |
| January 2026 | 27 | 26 | 76.9% | 1 |
| February 2026 | 25 | 25 | 96.0% | 0 |
| March 2026 | 67 | 67 | 32.8% | 0 |
| April 2026 | 18 | 17 | 47.1% | 1 |
| May 2026 | 5 | 5 | 60.0% | 0 |
| June 2026 | 27 | 27 | 92.6% | 0 |
| July 2026 | 30 | 30 | 96.7% | 0 |