WN4279
WN4279 (Southwest Airlines) is a multi-stop service on 18 routes, busiest Kahului to Honolulu. Of 476 departures recorded from October 2024 to July 2026, 71.5% left on time, according to the US BTS.
- On-time departures71.5%of 476 flights
- Average delay14.7 min
- July 202624▲ 200.0%vs July 2025
- Cancelled0.4%
- Legs flown under this number18
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 25 | ▼ 19.4% |
| February | 28 | 27 | ▼ 3.6% |
| March | 5 | 53 | ▲ 960.0% |
| April | 23 | 34 | ▲ 47.8% |
| May | 30 | 31 | ▲ 3.3% |
| June | 12 | 14 | ▲ 16.7% |
| July | 8 | 24 | ▲ 200.0% |
| August | 13 | – | – |
| September | 13 | – | – |
| October | – | – | in progress |
| November | 4 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 137 | 208 | ▲ 51.8% |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 93.3% | 44.0% | ▼ 52.9% |
| February | 100.0% | 55.6% | ▼ 44.4% |
| March | 80.0% | 62.3% | ▼ 22.2% |
| April | 52.2% | 82.4% | ▲ 57.8% |
| May | 30.0% | 80.7% | ▲ 168.8% |
| June | 66.7% | 71.4% | ▲ 7.1% |
| July | 75.0% | 41.7% | ▼ 44.4% |
| August | 84.6% | – | – |
| September | 91.7% | – | – |
| October | – | – | in progress |
| November | 75.0% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 71.0% | 62.6% | ▼ 11.9% |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 1 | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 0 | ▼ 100.0% |
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 99.6% 474
- Cancelled 0.4% 2
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | -5.9 min | 97.5% | 122 |
| SJU BWI Luis Munoz Marin International Airport – Baltimore/Washington International Thurgood Marshall Airport | 2,525 | 11.3 min | 87.9% | 58 |
| MSP DEN Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Denver International Airport | 1,092 | 48.0 min | 38.6% | 57 |
| MSY DEN Louis Armstrong New Orleans International Airport – Denver International Airport | 1,708 | 16.8 min | 52.8% | 53 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 30 | 30 | 66.7% | 0 |
| November 2024 | 29 | 29 | 100.0% | 0 |
| December 2024 | 31 | 31 | 100.0% | 0 |
| January 2025 | 31 | 30 | 93.3% | 1 |
| February 2025 | 28 | 28 | 100.0% | 0 |
| March 2025 | 5 | 5 | 80.0% | 0 |
| April 2025 | 23 | 23 | 52.2% | 0 |
| May 2025 | 30 | 30 | 30.0% | 0 |
| June 2025 | 12 | 12 | 66.7% | 0 |
| July 2025 | 8 | 8 | 75.0% | 0 |
| August 2025 | 13 | 13 | 84.6% | 0 |
| September 2025 | 13 | 12 | 91.7% | 1 |
| November 2025 | 4 | 4 | 75.0% | 0 |
| December 2025 | 11 | 11 | 63.6% | 0 |
| January 2026 | 25 | 25 | 44.0% | 0 |
| February 2026 | 27 | 27 | 55.6% | 0 |
| March 2026 | 53 | 53 | 62.3% | 0 |
| April 2026 | 34 | 34 | 82.4% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 14 | 14 | 71.4% | 0 |
| July 2026 | 24 | 24 | 41.7% | 0 |