WN256
WN256 (Southwest Airlines) is a multi-stop service on 46 routes, busiest Memphis to Houston. Of 808 departures recorded from October 2024 to July 2026, 82.7% left on time, according to the US BTS.
- On-time departures82.7%of 808 flights
- Average delay7.7 min
- July 202634▼ 12.8%vs July 2025
- Cancelled0.4%
- Legs flown under this number46
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 | 48 | 40 | ▼ 16.7% |
| February | 37 | 60 | ▲ 62.2% |
| March | 33 | 48 | ▲ 45.5% |
| April | 36 | 32 | ▼ 11.1% |
| May | 41 | 31 | ▼ 24.4% |
| June | 38 | 30 | ▼ 21.1% |
| July | 39 | 34 | ▼ 12.8% |
| August | 36 | – | – |
| September | 34 | – | – |
| October | 52 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 272 | 275 | ▲ 1.1% |
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 | 83.0% | 82.5% | ▼ 0.6% |
| February | 89.2% | 80.0% | ▼ 10.3% |
| March | 87.9% | 83.3% | ▼ 5.2% |
| April | 83.3% | 90.3% | ▲ 8.4% |
| May | 87.8% | 93.6% | ▲ 6.5% |
| June | 79.0% | 90.0% | ▲ 14.0% |
| July | 65.8% | 94.1% | ▲ 43.1% |
| August | 69.4% | – | – |
| September | 79.4% | – | – |
| October | 82.7% | – | in progress |
| November | 86.2% | – | – |
| December | 58.1% | – | – |
| Year-to-date average (Jan–Jul) | 82.3% | 87.7% | ▲ 6.6% |
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 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.6% 805
- Cancelled 0.4% 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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MEM HOU Frederick W. Smith International Airport – William P. Hobby Airport | 780 | 2.1 min | 91.4% | 70 |
| MSP MDW Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Chicago Midway International Airport | 560 | 11.2 min | 82.8% | 58 |
| MCO BNA Orlando International Airport – Nashville International Airport | 993 | -2.6 min | 95.9% | 50 |
| DAL MCI Dallas Love Field – Kansas City International Airport | 743 | 4.6 min | 84.0% | 50 |
| BWI JAX Baltimore/Washington International Thurgood Marshall Airport – Jacksonville International Airport | 1,068 | 5.5 min | 85.7% | 42 |
| ALB BWI Albany International Airport – Baltimore/Washington International Thurgood Marshall Airport | 464 | 18.3 min | 76.2% | 42 |
| LGB ABQ Long Beach International Airport – Albuquerque International Sunport | 1,067 | 15.6 min | 66.7% | 36 |
| AUS BNA Austin Bergstrom International Airport – Nashville International Airport | 1,215 | 6.3 min | 90.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 28 | 28 | 96.4% | 0 |
| December 2024 | 31 | 31 | 80.7% | 0 |
| January 2025 | 48 | 47 | 83.0% | 1 |
| February 2025 | 37 | 37 | 89.2% | 0 |
| March 2025 | 33 | 33 | 87.9% | 0 |
| April 2025 | 36 | 36 | 83.3% | 0 |
| May 2025 | 41 | 41 | 87.8% | 0 |
| June 2025 | 38 | 38 | 79.0% | 0 |
| July 2025 | 39 | 38 | 65.8% | 1 |
| August 2025 | 36 | 36 | 69.4% | 0 |
| September 2025 | 34 | 34 | 79.4% | 0 |
| October 2025 | 52 | 52 | 82.7% | 0 |
| November 2025 | 29 | 29 | 86.2% | 0 |
| December 2025 | 31 | 31 | 58.1% | 0 |
| January 2026 | 40 | 40 | 82.5% | 0 |
| February 2026 | 60 | 60 | 80.0% | 0 |
| March 2026 | 48 | 48 | 83.3% | 0 |
| April 2026 | 32 | 31 | 90.3% | 1 |
| May 2026 | 31 | 31 | 93.6% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 34 | 34 | 94.1% | 0 |