Flight profile · Alaska Airlines
AS348
Atlanta (ATL) to Seattle (SEA) · scheduled 7:34 PM – 10:14 PM
How AS348 performs
98 operations, 2025-10-26 to 2026-06-30.
AS348 arrived on time 62.5% of the time, against 80.4% for all ATL → SEA flights — this specific departure is 17.9 percentage points worse than the route as a whole. Against Alaska Airlines’s own flights on this route it is 13.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 98 operations between 2025-10-26 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS348 | 62.5% | 2.04% | 9 min | 12.5% | 98 |
| Alaska Airlines on ATL → SEA | 76.2% | 1.18% | -4 min | 5.5% | 3,054 |
| All ATL → SEA flights | 80.4% | 0.82% | -7 min | 4.8% | 10,247 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-10-26 to 2026-06-30
Other routes AS348 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.
Because the same number has served different journeys, the statistics above describe only the route AS348 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 98 records of AS348 operating ATL → 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.