WN4088
WN4088 (Southwest Airlines) is a multi-stop service on 14 routes, busiest Kahului to Honolulu. Of 316 departures recorded from October 2024 to July 2026, 86.0% left on time, according to the US BTS.
- On-time departures86.0%of 316 flights
- Average delay5.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.3%
- Legs flown under this number14
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 | – | 3 | – |
| February | 2 | 1 | ▼ 50.0% |
| March | 21 | 27 | ▲ 28.6% |
| April | 5 | 40 | ▲ 700.0% |
| May | 1 | 44 | ▲ 4,300.0% |
| June | 26 | 31 | ▲ 19.2% |
| July | 31 | 31 | 0.0% |
| August | 7 | – | – |
| September | 4 | – | – |
| October | 18 | – | in progress |
| November | 4 | – | – |
| December | 11 | – | – |
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 | – | 100.0% | – |
| February | 50.0% | 100.0% | ▲ 100.0% |
| March | 76.2% | 85.2% | ▲ 11.8% |
| April | 80.0% | 90.0% | ▲ 12.5% |
| May | 100.0% | 75.0% | ▼ 25.0% |
| June | 100.0% | 87.1% | ▼ 12.9% |
| July | 96.8% | 96.8% | 0.0% |
| August | 71.4% | – | – |
| September | 50.0% | – | – |
| October | 77.8% | – | in progress |
| November | 100.0% | – | – |
| December | 90.9% | – | – |
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 | – | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| 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 99.7% 315
- Cancelled 0.3% 1
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
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| OGG HNL Kahului International Airport – Daniel K. Inouye International Airport | 162 | -1.3 min | 98.3% | 61 |
| SAN MCI San Diego International Airport – Kansas City International Airport | 2,142 | 9.6 min | 84.5% | 58 |
| MDW CLE Chicago Midway International Airport – Cleveland Hopkins International Airport | 493 | 1.7 min | 91.4% | 58 |
| OAK SAN Oakland San Francisco Bay Airport – San Diego International Airport | 718 | 6.9 min | 84.9% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 9 | 9 | 66.7% | 0 |
| February 2025 | 2 | 2 | 50.0% | 0 |
| March 2025 | 21 | 21 | 76.2% | 0 |
| April 2025 | 5 | 5 | 80.0% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 26 | 25 | 100.0% | 1 |
| July 2025 | 31 | 31 | 96.8% | 0 |
| August 2025 | 7 | 7 | 71.4% | 0 |
| September 2025 | 4 | 4 | 50.0% | 0 |
| October 2025 | 18 | 18 | 77.8% | 0 |
| November 2025 | 4 | 4 | 100.0% | 0 |
| December 2025 | 11 | 11 | 90.9% | 0 |
| January 2026 | 3 | 3 | 100.0% | 0 |
| February 2026 | 1 | 1 | 100.0% | 0 |
| March 2026 | 27 | 27 | 85.2% | 0 |
| April 2026 | 40 | 40 | 90.0% | 0 |
| May 2026 | 44 | 44 | 75.0% | 0 |
| June 2026 | 31 | 31 | 87.1% | 0 |
| July 2026 | 31 | 31 | 96.8% | 0 |