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.

ENDEAVOR · FLIGHT 9E 4880 LANDED 11:35 PM ET, ~7 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29

9E 4880 · DTW → GRR

took off 11:06 PM ET · landed 11:35 PM ET (scheduled time unknown)

Forecast issued Tue 10:00 PM ET · 1h before departure

Arrive at GRR more than 15 minutes late?

9% chance · ±1 pts +2 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ Other factors

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into GRR at that hour are often late

↓ 9E's recent on-time record

↓ Mostly benign weather forecast at DTW

Weather at each end

DTW (origin) Gusts9 kt Ceilingnone (clear) Visibility9 mi Precipnone

GRR (destination) Gusts8 kt Ceilingnone (clear) Visibility6 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.

9E 4880 · DTW → GRR

Odds over time