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 357 LANDED 5:48 PM ET, ~12 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Today

AS 357 · SEA → BOS

took off 10:01 AM PT · landed 5:48 PM ET (scheduled time unknown)

Forecast issued Tue 4:00 PM ET · 3h after departure

Arrive at BOS more than 15 minutes late?

46% chance · ±2 pts +13 pts · 24h

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

What’s moving the odds

↑ Arrivals into BOS at that hour are often late

↑ 10am departures from SEA are often late

↑ This flight has been late 22% of the time recently

↓ Tuesdays in September are usually quieter than average

Weather at each end

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

BOS (destination) Gusts11 kt Ceiling600 ft Visibility1.5 mi Precip0.01 in

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 357 · SEA → BOS

Odds over time