WN155
WN155 (Southwest Airlines) is a multi-stop service on 33 routes, busiest Albany to Nashville. Of 753 departures recorded from October 2024 to July 2026, 78.9% left on time, according to the US BTS.
- On-time departures78.9%of 753 flights
- Average delay9.8 min
- July 202664▲ 113.3%vs July 2025
- Cancelled1.7%
- Legs flown under this number33
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 | 35 | 35 | 0.0% |
| February | 30 | 36 | ▲ 20.0% |
| March | 32 | 5 | ▼ 84.4% |
| April | 30 | 44 | ▲ 46.7% |
| May | 27 | 56 | ▲ 107.4% |
| June | 29 | 59 | ▲ 103.4% |
| July | 30 | 64 | ▲ 113.3% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 18 | – | in progress |
| November | 28 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 213 | 299 | ▲ 40.4% |
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 | 80.0% | 96.9% | ▲ 21.1% |
| February | 73.3% | 94.1% | ▲ 28.4% |
| March | 75.0% | 100.0% | ▲ 33.3% |
| April | 83.3% | 84.1% | ▲ 0.9% |
| May | 92.3% | 75.0% | ▼ 18.8% |
| June | 70.4% | 83.1% | ▲ 18.0% |
| July | 50.0% | 73.4% | ▲ 46.9% |
| August | 73.3% | – | – |
| September | 76.7% | – | – |
| October | 61.1% | – | in progress |
| November | 84.6% | – | – |
| December | 86.2% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 86.7% | ▲ 15.7% |
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 | 3 | – |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 2 | 0 | ▼ 100.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 5 | 0.0% |
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 98.3% 740
- Cancelled 1.7% 13
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
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 36 | 36 | 77.8% | 0 |
| December 2024 | 49 | 49 | 71.4% | 0 |
| January 2025 | 35 | 35 | 80.0% | 0 |
| February 2025 | 30 | 30 | 73.3% | 0 |
| March 2025 | 32 | 32 | 75.0% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 27 | 26 | 92.3% | 1 |
| June 2025 | 29 | 27 | 70.4% | 2 |
| July 2025 | 30 | 28 | 50.0% | 2 |
| August 2025 | 31 | 30 | 73.3% | 1 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 18 | 18 | 61.1% | 0 |
| November 2025 | 28 | 26 | 84.6% | 2 |
| December 2025 | 29 | 29 | 86.2% | 0 |
| January 2026 | 35 | 32 | 96.9% | 3 |
| February 2026 | 36 | 34 | 94.1% | 2 |
| March 2026 | 5 | 5 | 100.0% | 0 |
| April 2026 | 44 | 44 | 84.1% | 0 |
| May 2026 | 56 | 56 | 75.0% | 0 |
| June 2026 | 59 | 59 | 83.1% | 0 |
| July 2026 | 64 | 64 | 73.4% | 0 |