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 1337SCHEDULED · TYPICAL SCHEDULE
Today
AS 1337 · BOS → SEA
departs 7:44 PM ET · arrives 11:07 PM PT
Forecast issued Wed 7:00 AM ET · 13h before departure
Odds over time
Arrive at SEA more than 15 minutes late?
40%chance · ±4 pts+14 pts · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to SEA?
On time or early
60%
15–30 min late
18%
30 min–1 hour late
13%
1–2 hours late
6%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.