AS581
AS581 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Portland to Los Angeles. Of 280 departures recorded from December 2024 to July 2026, 93.5% left on time, according to the US BTS.
- On-time departures93.5%of 280 flights
- Average delay3.6 min
- July 202631
- Cancelled1.4%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods12 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 31 | ▲ 3,000.0% |
| February | – | 28 | – |
| March | – | 31 | – |
| April | – | 30 | – |
| May | – | 31 | – |
| June | 1 | 30 | ▲ 2,900.0% |
| July | – | 31 | – |
| August | – | – | – |
| September | – | – | – |
| October | 7 | – | in progress |
| November | 28 | – | – |
| December | 30 | – | – |
according to the US BTS · December 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 periods12 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 90.0% | ▼ 10.0% |
| February | – | 92.6% | – |
| March | – | 96.7% | – |
| April | – | 93.3% | – |
| May | – | 96.8% | – |
| June | 100.0% | 96.6% | ▼ 3.5% |
| July | – | 83.9% | – |
| August | – | – | – |
| September | – | – | – |
| October | 85.7% | – | in progress |
| November | 96.4% | – | – |
| December | 100.0% | – | – |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods12 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 1 | – |
| March | – | 1 | – |
| April | – | 0 | – |
| May | – | 0 | – |
| June | 0 | 1 | – |
| July | – | 0 | – |
| August | – | – | – |
| September | – | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · December 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 98.6% 276
- Cancelled 1.4% 4
Share of all recorded flights in the period, all legs. · Dec 3, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX LAX Portland International Airport – Los Angeles International Airport | 1,343 | 3.5 min | 93.8% | 276 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 1 | 1 | 0.0% | 0 |
| January 2025 | 1 | 1 | 100.0% | 0 |
| June 2025 | 1 | 1 | 100.0% | 0 |
| October 2025 | 7 | 7 | 85.7% | 0 |
| November 2025 | 28 | 28 | 96.4% | 0 |
| December 2025 | 30 | 30 | 100.0% | 0 |
| January 2026 | 31 | 30 | 90.0% | 1 |
| February 2026 | 28 | 27 | 92.6% | 1 |
| March 2026 | 31 | 30 | 96.7% | 1 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 96.8% | 0 |
| June 2026 | 30 | 29 | 96.6% | 1 |
| July 2026 | 31 | 31 | 83.9% | 0 |