Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

ALASKA · FLIGHT AS 660 LANDED 3:39 PM MT, ~21 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Today

AS 660 · SEA → MSO

took off 1:27 PM PT · landed 3:39 PM MT (scheduled time unknown)

Forecast issued Tue 4:00 PM ET · 0h before departure

Arrive at MSO more than 15 minutes late?

28% chance · ±2 pts −10 pts · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

What’s moving the odds

↑ Other factors

↑ 1pm departures from SEA are often late

↑ SEA is busy at that time

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at MSO

Weather at each end

SEA (origin) Gusts24 kt Ceiling1,000 ft Visibility6 mi Precip0.03 in

MSO (destination) Gusts19 kt Ceiling7,000 ft Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

AS 660 · SEA → MSO

Odds over time