AS1039
AS1039 (Alaska Airlines) is a multi-stop service on 4 routes, busiest Kailua-Kona to Kahului. Of 470 departures recorded from October 2024 to July 2026, 84.8% left on time, according to the US BTS.
- On-time departures84.8%of 470 flights
- Average delay6.8 min
- July 202631▲ 3.3%vs July 2025
- Cancelled0.4%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods15 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 19 | 30 | ▲ 57.9% |
| May | 1 | 31 | ▲ 3,000.0% |
| June | 19 | 30 | ▲ 57.9% |
| July | 30 | 31 | ▲ 3.3% |
| August | 19 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 159 | 212 | ▲ 33.3% |
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 periods15 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 90.3% | 93.6% | ▲ 3.6% |
| February | 77.8% | 92.9% | ▲ 19.4% |
| March | 80.7% | 93.6% | ▲ 16.0% |
| April | 79.0% | 90.0% | ▲ 14.0% |
| May | 100.0% | 90.3% | ▼ 9.7% |
| June | 57.9% | 96.6% | ▲ 66.8% |
| July | 56.7% | 96.8% | ▲ 70.8% |
| August | 79.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 77.5% | 93.4% | ▲ 20.5% |
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 periods15 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
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% 468
- Cancelled 0.4% 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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| KOA OGG Ellison Onizuka Kona International Airport at Keāhole – Kahului International Airport | 135 | 1.5 min | 93.4% | 212 |
| SEA PDX Seattle–Tacoma International Airport – Portland International Airport | 208 | 6.3 min | 83.0% | 189 |
| SEA GEG Seattle–Tacoma International Airport – Spokane International Airport | 359 | 24.2 min | 63.2% | 68 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 90.0% | 0 |
| December 2024 | 30 | 30 | 73.3% | 0 |
| January 2025 | 31 | 31 | 90.3% | 0 |
| February 2025 | 28 | 27 | 77.8% | 1 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 19 | 19 | 79.0% | 0 |
| May 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 19 | 19 | 57.9% | 0 |
| July 2025 | 30 | 30 | 56.7% | 0 |
| August 2025 | 19 | 19 | 79.0% | 0 |
| January 2026 | 31 | 31 | 93.6% | 0 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 31 | 31 | 93.6% | 0 |
| April 2026 | 30 | 30 | 90.0% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 29 | 96.6% | 1 |
| July 2026 | 31 | 31 | 96.8% | 0 |