WN3129
WN3129 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Baltimore to Houston. Of 655 departures recorded from November 2024 to July 2026, 75.9% left on time, according to the US BTS.
- On-time departures75.9%of 655 flights
- Average delay14.9 min
- July 202641▲ 57.7%vs July 2025
- Cancelled1.4%
- Legs flown under this number18
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 | 31 | 36 | ▲ 16.1% |
| February | 28 | 26 | ▼ 7.1% |
| March | 37 | 31 | ▼ 16.2% |
| April | 32 | 30 | ▼ 6.3% |
| May | 31 | 31 | 0.0% |
| June | 26 | 38 | ▲ 46.2% |
| July | 26 | 41 | ▲ 57.7% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 211 | 233 | ▲ 10.4% |
according to the US BTS · November 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 | 92.9% | 81.8% | ▼ 11.9% |
| February | 96.4% | 69.2% | ▼ 28.2% |
| March | 81.1% | 32.3% | ▼ 60.2% |
| April | 87.5% | 83.3% | ▼ 4.8% |
| May | 100.0% | 80.7% | ▼ 19.3% |
| June | 42.3% | 68.4% | ▲ 61.7% |
| July | 17.4% | 70.7% | ▲ 306.7% |
| August | 87.1% | – | – |
| September | 93.3% | – | – |
| October | 93.6% | – | in progress |
| November | 65.5% | – | – |
| December | 51.6% | – | – |
| Year-to-date average (Jan–Jul) | 73.9% | 69.5% | ▼ 6.0% |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 3 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 3 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 6 | 3 | ▼ 50.0% |
according to the US BTS · November 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% 646
- Cancelled 1.4% 9
Share of all recorded flights in the period, all legs. · Nov 3, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
10Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 28 | 28 | 100.0% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 28 | 92.9% | 3 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 37 | 37 | 81.1% | 0 |
| April 2025 | 32 | 32 | 87.5% | 0 |
| May 2025 | 31 | 31 | 100.0% | 0 |
| June 2025 | 26 | 26 | 42.3% | 0 |
| July 2025 | 26 | 23 | 17.4% | 3 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 93.6% | 0 |
| November 2025 | 29 | 29 | 65.5% | 0 |
| December 2025 | 31 | 31 | 51.6% | 0 |
| January 2026 | 36 | 33 | 81.8% | 3 |
| February 2026 | 26 | 26 | 69.2% | 0 |
| March 2026 | 31 | 31 | 32.3% | 0 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 38 | 38 | 68.4% | 0 |
| July 2026 | 41 | 41 | 70.7% | 0 |