Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALASKA · FLIGHT AS 1637SCHEDULED · TYPICAL SCHEDULE
Today
AS 1637 · LAS → ANC
departs 4:33 PM PT · arrives 8:59 PM AKT
Forecast issued Tue 3:00 PM ET · 4h before departure
Odds over time
Arrive at ANC more than 15 minutes late?
58%chance · ±8 pts+26 pts · 24h
HOW SURE WE AREHigh. The odds now come mostly from live FAA and airport data.
How late will it get to ANC?
On time or early
40%
15–30 min late
22%
30 min–1 hour late
14%
1–2 hours late
16%
Over 2 hours late
5%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.