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.

CAPE AIR · FLIGHT 9K 5381 SCHEDULED · SCHEDULED TIME UNKNOWN

Monday, October 5 Today

9K 5381 · ACK → BOS

departs 9:30 PM ET · arrives 10:07 PM ET

Forecast issued Mon 1:00 PM ET · 8h before departure

Arrive at BOS more than 15 minutes late?

33% chance · ±0 pts – · 24h

HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.

What’s moving the odds

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into BOS at that hour are often late

↑ This route's recent record

↓ Gusts to 25 kt, cloud base down to 400 ft, visibility down to 1.5 mi forecast at BOS that day

↓ 9pm departures from ACK are usually not late

Weather at each end

ACK (origin) Gusts22 kt Ceiling200 ft Visibility1.75 mi Precip0.48 in

BOS (destination) Gusts25 kt Ceiling400 ft Visibility1.5 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.

9K 5381 · ACK → BOS

Odds over time