Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALASKA · FLIGHT AS 4SCHEDULED · TYPICAL SCHEDULE
Today
AS 4 · SEA → DCA
departs 8:00 AM PT · arrives 4:16 PM ET
Forecast issued Fri 1:00 PM ET · 2h after departure
Odds over time
Arrive at DCA more than 15 minutes late?
27%chance · ±4 pts+5 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to DCA?
On time or early
72%
15–30 min late
15%
30 min–1 hour late
7%
1–2 hours late
4%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.