WN4089
WN4089 (Southwest Airlines) is a multi-stop service on 21 routes, busiest Kahului to Honolulu. Of 347 departures recorded from October 2024 to July 2026, 79.4% left on time, according to the US BTS.
- On-time departures79.4%of 347 flights
- Average delay11.8 min
- July 202621▼ 32.3%vs July 2025
- Cancelled0.6%
- Legs flown under this number21
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 | 9 | 2 | ▼ 77.8% |
| February | 17 | – | – |
| March | 3 | 8 | ▲ 166.7% |
| April | 15 | 1 | ▼ 93.3% |
| May | 23 | 2 | ▼ 91.3% |
| June | 28 | 20 | ▼ 28.6% |
| July | 31 | 21 | ▼ 32.3% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 31 | – | in progress |
| November | 27 | – | – |
| December | 19 | – | – |
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 | 55.6% | 100.0% | ▲ 80.0% |
| February | 76.5% | – | – |
| March | 66.7% | 62.5% | ▼ 6.3% |
| April | 86.7% | 100.0% | ▲ 15.4% |
| May | 73.9% | 100.0% | ▲ 35.3% |
| June | 100.0% | 26.3% | ▼ 73.7% |
| July | 93.6% | 40.0% | ▼ 57.2% |
| August | 80.0% | – | – |
| September | 88.2% | – | – |
| October | 80.7% | – | in progress |
| November | 92.6% | – | – |
| December | 100.0% | – | – |
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 | 0 | 0 | – |
| February | 0 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| 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 99.4% 345
- Cancelled 0.6% 2
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 |
|---|---|---|---|---|
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | -1.0 min | 95.1% | 61 |
| LAS MKE Harry Reid International Airport – General Mitchell International Airport | 2,447 | 17.3 min | 70.2% | 57 |
| MDW STL Chicago Midway International Airport – St. Louis Lambert International Airport | 404 | -2.3 min | 95.2% | 42 |
| MDW ORF Chicago Midway International Airport – Norfolk International Airport | 1,131 | 50.4 min | 33.3% | 41 |
| SMF ONT Sacramento International Airport – Ontario International Airport | 627 | 11.6 min | 80.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 94.4% | 0 |
| November 2024 | 19 | 19 | 89.5% | 0 |
| December 2024 | 16 | 16 | 62.5% | 0 |
| January 2025 | 9 | 9 | 55.6% | 0 |
| February 2025 | 17 | 17 | 76.5% | 0 |
| March 2025 | 3 | 3 | 66.7% | 0 |
| April 2025 | 15 | 15 | 86.7% | 0 |
| May 2025 | 23 | 23 | 73.9% | 0 |
| June 2025 | 28 | 28 | 100.0% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 20 | 20 | 80.0% | 0 |
| September 2025 | 17 | 17 | 88.2% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 27 | 27 | 92.6% | 0 |
| December 2025 | 19 | 19 | 100.0% | 0 |
| January 2026 | 2 | 2 | 100.0% | 0 |
| March 2026 | 8 | 8 | 62.5% | 0 |
| April 2026 | 1 | 1 | 100.0% | 0 |
| May 2026 | 2 | 2 | 100.0% | 0 |
| June 2026 | 20 | 19 | 26.3% | 1 |
| July 2026 | 21 | 20 | 40.0% | 1 |