Flight profile · Alaska Airlines
AS648
Seattle (SEA) to Tucson (TUS) · scheduled 8:00 AM – 2:33 PM
How AS648 performs
1,036 operations, 2023-07-01 to 2026-06-30.
AS648 arrived on time 78.4% of the time, against 80.5% for all SEA → TUS flights — this specific departure is 2.1 percentage points worse than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 1,036 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS648 | 78.4% | 0.39% | -2 min | 2.5% | 1,036 |
| Alaska Airlines on SEA → TUS | 78.5% | 0.38% | -2 min | 3.1% | 1,575 |
| All SEA → TUS flights | 80.5% | 0.35% | -4 min | 3.8% | 3,187 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does AS648 run worse on particular days?
Monday is historically the most reliable day and Friday the least, a gap of 8.6 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 1,036 records of AS648 operating SEA → TUS, 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.