WN371
WN371 (Southwest Airlines) is a multi-stop service on 45 routes, busiest Philadelphia to Nashville. Of 775 departures recorded from October 2024 to July 2026, 75.7% left on time, according to the US BTS.
- On-time departures75.7%of 775 flights
- Average delay14.5 min
- July 202668▲ 126.7%vs July 2025
- Cancelled0.9%
- Legs flown under this number45
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 28 | ▼ 20.0% |
| February | 43 | 27 | ▼ 37.2% |
| March | 35 | 24 | ▼ 31.4% |
| April | 31 | 29 | ▼ 6.5% |
| May | 31 | 31 | 0.0% |
| June | 30 | 62 | ▲ 106.7% |
| July | 30 | 68 | ▲ 126.7% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 36 | – | in progress |
| November | 38 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 235 | 269 | ▲ 14.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 85.3% | 92.9% | ▲ 8.9% |
| February | 72.1% | 51.9% | ▼ 28.1% |
| March | 94.3% | 69.6% | ▼ 26.2% |
| April | 87.1% | 65.5% | ▼ 24.8% |
| May | 80.7% | 54.8% | ▼ 32.0% |
| June | 50.0% | 66.1% | ▲ 32.3% |
| July | 57.1% | 61.8% | ▲ 8.1% |
| August | 74.2% | – | – |
| September | 83.3% | – | – |
| October | 61.1% | – | in progress |
| November | 92.1% | – | – |
| December | 93.2% | – | – |
| Year-to-date average (Jan–Jul) | 75.2% | 66.1% | ▼ 12.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.1% 768
- Cancelled 0.9% 7
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHL BNA Philadelphia International Airport – Nashville International Airport | 1,084 | 10.6 min | 84.5% | 58 |
| ATL DEN Hartsfield Jackson Atlanta International Airport – Denver International Airport | 1,927 | 7.8 min | 79.0% | 57 |
| BWI ATL Baltimore/Washington International Thurgood Marshall Airport – Hartsfield Jackson Atlanta International Airport | 928 | 0.4 min | 94.4% | 55 |
| AUS OAK Austin Bergstrom International Airport – Oakland San Francisco Bay Airport | 2,406 | 17.8 min | 67.9% | 53 |
| SAN ABQ San Diego International Airport – Albuquerque International Sunport | 1,009 | 33.6 min | 48.0% | 50 |
| AUS OKC Austin Bergstrom International Airport – OKC Will Rogers World Airport | 578 | 21.8 min | 58.3% | 48 |
| BNA AUS Nashville International Airport – Austin Bergstrom International Airport | 1,215 | 0.3 min | 93.6% | 47 |
| ATL DCA Hartsfield Jackson Atlanta International Airport – Ronald Reagan Washington National Airport | 880 | 61.7 min | 35.0% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 27 | 25 | 92.0% | 2 |
| November 2024 | 31 | 31 | 93.6% | 0 |
| December 2024 | 33 | 33 | 97.0% | 0 |
| January 2025 | 35 | 34 | 85.3% | 1 |
| February 2025 | 43 | 43 | 72.1% | 0 |
| March 2025 | 35 | 35 | 94.3% | 0 |
| April 2025 | 31 | 31 | 87.1% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 30 | 30 | 50.0% | 0 |
| July 2025 | 30 | 28 | 57.1% | 2 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 30 | 30 | 83.3% | 0 |
| October 2025 | 36 | 36 | 61.1% | 0 |
| November 2025 | 38 | 38 | 92.1% | 0 |
| December 2025 | 45 | 44 | 93.2% | 1 |
| January 2026 | 28 | 28 | 92.9% | 0 |
| February 2026 | 27 | 27 | 51.9% | 0 |
| March 2026 | 24 | 23 | 69.6% | 1 |
| April 2026 | 29 | 29 | 65.5% | 0 |
| May 2026 | 31 | 31 | 54.8% | 0 |
| June 2026 | 62 | 62 | 66.1% | 0 |
| July 2026 | 68 | 68 | 61.8% | 0 |