Flight profile · Alaska Airlines
AS358
Portland (PDX) to Boston (BOS) · scheduled 7:00 AM – 3:25 PM
How AS358 performs
1,024 operations, 2023-07-01 to 2026-06-30.
AS358 arrived on time 81.5% of the time, against 76.4% for all PDX → BOS flights — this specific departure is 5.1 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 1,024 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS358 | 81.5% | 0.78% | -6 min | 4.6% | 1,024 |
| Alaska Airlines on PDX → BOS | 82.0% | 0.68% | -6 min | 3.9% | 1,461 |
| All PDX → BOS flights | 76.4% | 0.72% | -3 min | 7.5% | 1,938 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does AS358 run worse on particular days?
Sunday is historically the most reliable day and Monday the least, a gap of 11.5 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 1,024 records of AS358 operating PDX → BOS, 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.