WN456
WN456 (Southwest Airlines) is a multi-stop service on 31 routes, busiest Dallas to New York. Of 748 departures recorded from October 2024 to July 2026, 80.7% left on time, according to the US BTS.
- On-time departures80.7%of 748 flights
- Average delay9.8 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.9%
- Legs flown under this number31
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 | 31 | 32 | ▲ 3.2% |
| February | 28 | 28 | 0.0% |
| March | 31 | 38 | ▲ 22.6% |
| April | 57 | 31 | ▼ 45.6% |
| May | 58 | 29 | ▼ 50.0% |
| June | 37 | 30 | ▼ 18.9% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 27 | – | in progress |
| November | 38 | – | – |
| December | 45 | – | – |
| Year to date (Jan–Jul) | 273 | 219 | ▼ 19.8% |
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 | 90.0% | 78.1% | ▼ 13.2% |
| February | 78.6% | 82.1% | ▲ 4.5% |
| March | 90.0% | 84.2% | ▼ 6.4% |
| April | 87.7% | 67.7% | ▼ 22.8% |
| May | 89.5% | 79.3% | ▼ 11.4% |
| June | 97.3% | 86.7% | ▼ 10.9% |
| July | 93.6% | 96.8% | ▲ 3.4% |
| August | 80.0% | – | – |
| September | 79.3% | – | – |
| October | 96.3% | – | in progress |
| November | 51.4% | – | – |
| December | 53.3% | – | – |
| Year-to-date average (Jan–Jul) | 89.5% | 82.1% | ▼ 8.2% |
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 | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 0 | ▼ 100.0% |
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 99.1% 741
- 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 |
|---|---|---|---|---|
| DAL LGA Dallas Love Field – LaGuardia Airport | 2,219 | 23.3 min | 70.0% | 91 |
| PHX PDX Phoenix Sky Harbor International Airport – Portland International Airport | 1,625 | 35.2 min | 39.7% | 64 |
| MSP STL Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – St. Louis Lambert International Airport | 722 | 4.2 min | 95.1% | 61 |
| SLC OAK Salt Lake City International Airport – Oakland San Francisco Bay Airport | 945 | 5.6 min | 86.2% | 58 |
| LGB HNL Long Beach International Airport – Daniel K. Inouye International Airport | 4,130 | 2.9 min | 94.8% | 58 |
| ABQ DEN Albuquerque International Sunport – Denver International Airport | 563 | 3.3 min | 91.2% | 58 |
| DAL ATL Dallas Love Field – Hartsfield Jackson Atlanta International Airport | 1,158 | 7.1 min | 78.2% | 57 |
| LGB SJC Long Beach International Airport – Mineta San Jose International Airport | 522 | 14.8 min | 67.4% | 49 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 23 | 23 | 78.3% | 0 |
| November 2024 | 31 | 31 | 74.2% | 0 |
| December 2024 | 31 | 30 | 63.3% | 1 |
| January 2025 | 31 | 30 | 90.0% | 1 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 31 | 30 | 90.0% | 1 |
| April 2025 | 57 | 57 | 87.7% | 0 |
| May 2025 | 58 | 57 | 89.5% | 1 |
| June 2025 | 37 | 37 | 97.3% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 31 | 30 | 80.0% | 1 |
| September 2025 | 30 | 29 | 79.3% | 1 |
| October 2025 | 27 | 27 | 96.3% | 0 |
| November 2025 | 38 | 37 | 51.4% | 1 |
| December 2025 | 45 | 45 | 53.3% | 0 |
| January 2026 | 32 | 32 | 78.1% | 0 |
| February 2026 | 28 | 28 | 82.1% | 0 |
| March 2026 | 38 | 38 | 84.2% | 0 |
| April 2026 | 31 | 31 | 67.7% | 0 |
| May 2026 | 29 | 29 | 79.3% | 0 |
| June 2026 | 30 | 30 | 86.7% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |