Flight profile · Alaska Airlines
AS1305
Los Angeles (LAX) to Seattle (SEA) · scheduled 6:55 PM – 3:42 PM
How AS1305 performs
667 operations, 2023-07-02 to 2026-06-30.
AS1305 arrived on time 74.7% of the time, against 85.0% for all LAX → SEA flights — this specific departure is 10.2 percentage points worse than the route as a whole. Against Alaska Airlines’s own flights on this route it is 8.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 667 operations between 2023-07-02 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS1305 | 74.7% | 2.10% | -3 min | 6.3% | 667 |
| Alaska Airlines on LAX → SEA | 83.4% | 1.25% | -7 min | 3.8% | 10,185 |
| All LAX → SEA flights | 85.0% | 0.85% | -10 min | 4.1% | 22,509 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-02 to 2026-06-30
Other routes AS1305 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| PDX→GEG Portland to Spokane | 2025-05-15 – 2025-06-11 | 28 | — |
Because the same number has served different journeys, the statistics above describe only the route AS1305 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 667 records of AS1305 operating LAX → SEA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.