Flight profile · Alaska Airlines
AS1327
San Francisco (SFO) to Seattle (SEA) · scheduled 7:55 PM – 9:00 PM
How AS1327 performs
641 operations, 2023-07-01 to 2026-06-30.
AS1327 arrived on time 56.8% of the time, against 76.4% for all SFO → SEA flights — this specific departure is 19.6 percentage points worse than the route as a whole. Against Alaska Airlines’s own flights on this route it is 15.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 641 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS1327 | 56.8% | 2.50% | 9 min | 12.6% | 641 |
| Alaska Airlines on SFO → SEA | 71.9% | 1.76% | -2 min | 7.0% | 8,347 |
| All SFO → SEA flights | 76.4% | 1.17% | -6 min | 6.6% | 20,101 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes AS1327 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 |
|---|---|---|---|
| SEA→LIH Seattle to Lihue, Kauai | 2026-03-18 – 2026-03-18 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route AS1327 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 641 records of AS1327 operating SFO → 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.