WN1279
WN1279 (Southwest Airlines) is a multi-stop service on 43 routes, busiest Pittsburgh to Nashville. Of 641 departures recorded from October 2024 to July 2026, 78.4% left on time, according to the US BTS.
- On-time departures78.4%of 641 flights
- Average delay10.0 min
- July 202617▼ 26.1%vs July 2025
- Cancelled0.3%
- Legs flown under this number43
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 | 29 | 30 | ▲ 3.4% |
| February | 27 | 24 | ▼ 11.1% |
| March | 64 | 34 | ▼ 46.9% |
| April | 41 | 15 | ▼ 63.4% |
| May | 33 | 9 | ▼ 72.7% |
| June | 25 | 17 | ▼ 32.0% |
| July | 23 | 17 | ▼ 26.1% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 242 | 146 | ▼ 39.7% |
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 | 79.3% | 96.6% | ▲ 21.7% |
| February | 92.6% | 66.7% | ▼ 28.0% |
| March | 68.8% | 91.2% | ▲ 32.6% |
| April | 75.6% | 100.0% | ▲ 32.3% |
| May | 87.5% | 100.0% | ▲ 14.3% |
| June | 56.0% | 82.4% | ▲ 47.1% |
| July | 65.2% | 76.5% | ▲ 17.2% |
| August | 83.9% | – | – |
| September | 90.0% | – | – |
| October | 25.8% | – | in progress |
| November | 100.0% | – | – |
| December | 96.8% | – | – |
| Year-to-date average (Jan–Jul) | 75.0% | 87.6% | ▲ 16.8% |
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 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 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 99.7% 639
- Cancelled 0.3% 2
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 29, 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 |
|---|---|---|---|---|
| PIT BNA Pittsburgh International Airport – Nashville International Airport | 743 | -1.8 min | 98.4% | 63 |
| MCO ORF Orlando International Airport – Norfolk International Airport | 1,055 | 0.1 min | 91.1% | 57 |
| LAX RNO Los Angeles International Airport – Reno Tahoe International Airport | 630 | 18.9 min | 57.8% | 45 |
| MIA BWI Miami International Airport – Baltimore/Washington International Thurgood Marshall Airport | 1,526 | 16.7 min | 79.4% | 34 |
| MSY DAL Louis Armstrong New Orleans International Airport – Dallas Love Field | 700 | -3.0 min | 96.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 57.1% | 0 |
| November 2024 | 55 | 55 | 80.0% | 0 |
| December 2024 | 32 | 32 | 71.9% | 0 |
| January 2025 | 29 | 29 | 79.3% | 0 |
| February 2025 | 27 | 27 | 92.6% | 0 |
| March 2025 | 64 | 64 | 68.8% | 0 |
| April 2025 | 41 | 41 | 75.6% | 0 |
| May 2025 | 33 | 32 | 87.5% | 1 |
| June 2025 | 25 | 25 | 56.0% | 0 |
| July 2025 | 23 | 23 | 65.2% | 0 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 25.8% | 0 |
| November 2025 | 29 | 29 | 100.0% | 0 |
| December 2025 | 31 | 31 | 96.8% | 0 |
| January 2026 | 30 | 29 | 96.6% | 1 |
| February 2026 | 24 | 24 | 66.7% | 0 |
| March 2026 | 34 | 34 | 91.2% | 0 |
| April 2026 | 15 | 15 | 100.0% | 0 |
| May 2026 | 9 | 9 | 100.0% | 0 |
| June 2026 | 17 | 17 | 82.4% | 0 |
| July 2026 | 17 | 17 | 76.5% | 0 |