Flight profile · Alaska Airlines
AS188
Anchorage (ANC) to Seattle (SEA) · scheduled 5:00 AM – 9:28 AM
How AS188 performs
873 operations, 2023-07-01 to 2026-04-21.
AS188 arrived on time 90.2% of the time, against 84.9% for all ANC → SEA flights — this specific departure is 5.3 percentage points better than the route as a whole. Against Alaska Airlines’s own flights on this route it is 6.5 points better.
Source: US DOT Bureau of Transportation Statistics · 873 operations between 2023-07-01 to 2026-04-21
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS188 | 90.2% | 0.46% | -9 min | 2.1% | 873 |
| Alaska Airlines on ANC → SEA | 83.7% | 1.01% | -6 min | 3.4% | 16,554 |
| All ANC → SEA flights | 84.9% | 0.87% | -8 min | 3.6% | 21,631 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-04-21
By day of week
Does AS188 run worse on particular days?
Tuesday is historically the most reliable day and Sunday the least, a gap of 4.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-04-21 · Days with fewer than 120 operations are not scored.
Other routes AS188 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 |
|---|---|---|---|
| LAS→SEA Las Vegas to Seattle | 2026-03-08 – 2026-03-08 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route AS188 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 873 records of AS188 operating ANC → 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.