AS489
AS489 (Alaska Airlines) is a multi-stop service on 3 routes, busiest Seattle to Ontario. Of 199 departures recorded from May 2025 to July 2026, 73.2% left on time, according to the US BTS.
- On-time departures73.2%of 199 flights
- Average delay12.0 min
- July 202630
- Cancelled0.5%
- Legs flown under this number3
Recorded departures by month
Short series — AS489 has only 11 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 20 | – |
| February | – | 6 | – |
| March | – | 15 | – |
| April | – | 30 | – |
| May | 1 | 28 | ▲ 2,700.0% |
| June | – | 23 | – |
| July | – | 30 | – |
| August | – | – | – |
| September | – | – | – |
| October | 3 | – | in progress |
| November | 20 | – | – |
| December | 23 | – | – |
according to the US BTS · May 2025 → July 2026
On-time departures by month
Short series — AS489 has only 11 months so far. Enough to show the level now, not enough to read a trend.
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 90.0% | – |
| February | – | 100.0% | – |
| March | – | 80.0% | – |
| April | – | 83.3% | – |
| May | 100.0% | 64.3% | ▼ 35.7% |
| June | – | 73.9% | – |
| July | – | 60.0% | – |
| August | – | – | – |
| September | – | – | – |
| October | 66.7% | – | in progress |
| November | 65.0% | – | – |
| December | 68.2% | – | – |
according to the US BTS · May 2025 → July 2026
Average departure delay by month
Short series — AS489 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · May 2025 → July 2026
Cancelled departures by month
Short series — AS489 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 0 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | 0 | – |
| May | 0 | 0 | – |
| June | – | 0 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
according to the US BTS · May 2025 → 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 99.5% 198
- Cancelled 0.5% 1
Share of all recorded flights in the period, all legs. · May 14, 2025 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA ONT Seattle–Tacoma International Airport – Ontario International Airport | 1,540 | 11.4 min | 73.5% | 197 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| May 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 3 | 3 | 66.7% | 0 |
| November 2025 | 20 | 20 | 65.0% | 0 |
| December 2025 | 23 | 22 | 68.2% | 1 |
| January 2026 | 20 | 20 | 90.0% | 0 |
| February 2026 | 6 | 6 | 100.0% | 0 |
| March 2026 | 15 | 15 | 80.0% | 0 |
| April 2026 | 30 | 30 | 83.3% | 0 |
| May 2026 | 28 | 28 | 64.3% | 0 |
| June 2026 | 23 | 23 | 73.9% | 0 |
| July 2026 | 30 | 30 | 60.0% | 0 |