AS128
AS128 (Alaska Airlines) is a multi-stop service on 4 routes, busiest Portland to San Francisco. Of 508 departures recorded from October 2024 to April 2026, 82.7% left on time, according to the US BTS.
- On-time departures82.7%of 508 flights
- Average delay5.2 min
- April 202621▼ 32.3%vs April 2025
- Cancelled1.0%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods16 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 26 | 11 | ▼ 57.7% |
| March | 31 | 15 | ▼ 51.6% |
| April | 31 | 21 | ▼ 32.3% |
| May | 29 | – | – |
| June | 30 | – | – |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Apr) | 119 | 78 | ▼ 34.5% |
according to the US BTS · October 2024 → April 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods16 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 93.6% | 83.9% | ▼ 10.3% |
| February | 80.0% | 81.8% | ▲ 2.3% |
| March | 90.3% | 100.0% | ▲ 10.7% |
| April | 80.7% | 57.1% | ▼ 29.2% |
| May | 86.2% | – | – |
| June | 83.3% | – | – |
| July | 58.1% | – | – |
| August | 83.9% | – | – |
| September | 86.7% | – | – |
| October | 64.5% | – | in progress |
| November | 96.4% | – | – |
| December | 90.0% | – | – |
| Year-to-date average (Jan–Apr) | 86.1% | 80.7% | ▼ 6.3% |
according to the US BTS · October 2024 → April 2026
Average departure delay by month
according to the US BTS · October 2024 → April 2026
Cancelled departures by month
The most recent periods16 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 | – | – |
| June | 0 | – | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Apr) | 1 | 0 | ▼ 100.0% |
according to the US BTS · October 2024 → April 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 99.0% 503
- Cancelled 1.0% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Apr 21, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PDX SFO Portland International Airport – San Francisco International Airport | 886 | 5.4 min | 82.3% | 467 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 27 | 26 | 92.3% | 1 |
| December 2024 | 21 | 21 | 85.7% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 26 | 25 | 80.0% | 1 |
| March 2025 | 31 | 31 | 90.3% | 0 |
| April 2025 | 31 | 31 | 80.7% | 0 |
| May 2025 | 29 | 29 | 86.2% | 0 |
| June 2025 | 30 | 30 | 83.3% | 0 |
| July 2025 | 31 | 31 | 58.1% | 0 |
| August 2025 | 31 | 31 | 83.9% | 0 |
| September 2025 | 30 | 30 | 86.7% | 0 |
| October 2025 | 31 | 31 | 64.5% | 0 |
| November 2025 | 30 | 28 | 96.4% | 2 |
| December 2025 | 31 | 30 | 90.0% | 1 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 11 | 11 | 81.8% | 0 |
| March 2026 | 15 | 15 | 100.0% | 0 |
| April 2026 | 21 | 21 | 57.1% | 0 |