Flight profile · Alaska Airlines
AS645
Phoenix (PHX) to Seattle (SEA) · scheduled 8:00 AM – 10:11 AM
How AS645 performs
1,048 operations, 2023-07-01 to 2026-06-30.
AS645 arrived on time 85.0% of the time, against 82.8% for all PHX → SEA flights — this specific departure is 2.2 percentage points better than the route as a whole. Against Alaska Airlines’s own flights on this route it is 1.9 points better.
Source: US DOT Bureau of Transportation Statistics · 1,048 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS645 | 85.0% | 0.67% | -4 min | 3.0% | 1,048 |
| Alaska Airlines on PHX → SEA | 83.1% | 0.92% | -5 min | 3.6% | 8,938 |
| All PHX → SEA flights | 82.8% | 0.58% | -6 min | 4.3% | 21,737 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does AS645 run worse on particular days?
Friday is historically the most reliable day and Monday the least, a gap of 7.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,048 records of AS645 operating PHX → 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.