Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALASKA · FLIGHT AS 255SCHEDULED · TYPICAL SCHEDULE
Today
AS 255 · SAN → BOS
departs 8:52 PM PT · arrives 5:40 AM ET
Forecast issued Wed 4:00 AM ET · 20h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
22%chance · ±4 pts+6 pts · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to BOS?
On time or early
77%
15–30 min late
11%
30 min–1 hour late
7%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.