WN4445
WN4445 (Southwest Airlines) is a multi-stop service on 20 routes, busiest Nashville to Pittsburgh. Of 431 departures recorded from October 2024 to July 2026, 73.8% left on time, according to the US BTS.
- On-time departures73.8%of 431 flights
- Average delay15.5 min
- July 202630▲ 42.9%vs July 2025
- Cancelled0.7%
- Legs flown under this number20
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 | 28 | 3 | ▼ 89.3% |
| February | 18 | – | – |
| March | 28 | 28 | 0.0% |
| April | 17 | 30 | ▲ 76.5% |
| May | 11 | 31 | ▲ 181.8% |
| June | 23 | 30 | ▲ 30.4% |
| July | 21 | 30 | ▲ 42.9% |
| August | 4 | – | – |
| September | – | – | – |
| October | 30 | – | in progress |
| November | 7 | – | – |
| December | 11 | – | – |
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 | 88.9% | 33.3% | ▼ 62.5% |
| February | 83.3% | – | – |
| March | 85.7% | 67.9% | ▼ 20.8% |
| April | 94.1% | 66.7% | ▼ 29.2% |
| May | 81.8% | 48.4% | ▼ 40.9% |
| June | 43.5% | 66.7% | ▲ 53.3% |
| July | 63.2% | 76.7% | ▲ 21.4% |
| August | 0.0% | – | – |
| September | – | – | – |
| October | 100.0% | – | in progress |
| November | 57.1% | – | – |
| December | 81.8% | – | – |
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 | 1 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| 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 99.3% 428
- Cancelled 0.7% 3
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BNA PIT Nashville International Airport – Pittsburgh International Airport | 743 | 9.7 min | 81.5% | 109 |
| MCO LAS Orlando International Airport – Harry Reid International Airport | 3,276 | 22.3 min | 55.2% | 58 |
| LAS ONT Harry Reid International Airport – Ontario International Airport | 317 | 7.7 min | 82.4% | 34 |
| SJC LAX Mineta San Jose International Airport – Los Angeles International Airport | 496 | 10.8 min | 72.7% | 33 |
| SEA SMF Seattle–Tacoma International Airport – Sacramento International Airport | 975 | -3.1 min | 100.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 31 | 31 | 64.5% | 0 |
| January 2025 | 28 | 27 | 88.9% | 1 |
| February 2025 | 18 | 18 | 83.3% | 0 |
| March 2025 | 28 | 28 | 85.7% | 0 |
| April 2025 | 17 | 17 | 94.1% | 0 |
| May 2025 | 11 | 11 | 81.8% | 0 |
| June 2025 | 23 | 23 | 43.5% | 0 |
| July 2025 | 21 | 19 | 63.2% | 2 |
| August 2025 | 4 | 4 | 0.0% | 0 |
| October 2025 | 30 | 30 | 100.0% | 0 |
| November 2025 | 7 | 7 | 57.1% | 0 |
| December 2025 | 11 | 11 | 81.8% | 0 |
| January 2026 | 3 | 3 | 33.3% | 0 |
| March 2026 | 28 | 28 | 67.9% | 0 |
| April 2026 | 30 | 30 | 66.7% | 0 |
| May 2026 | 31 | 31 | 48.4% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 30 | 30 | 76.7% | 0 |