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.

ALLEGIANT · FLIGHT G4 540 LANDED 12:36 PM ET, ~12 MIN LATE · SCHEDULED TIME UNKNOWN

Saturday, October 3 Yesterday

G4 540 · SFB → GRR

took off 10:22 AM ET · landed 12:36 PM ET (scheduled time unknown)

Forecast issued Sat 10:00 PM ET · 12h after departure

Arrive at GRR more than 15 minutes late?

23% chance · ±0 pts – · 24h

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

What’s moving the odds

No breakdown for this forecast yet.

Weather at each end

SFB (origin) Gusts34 kt Ceiling3,600 ft Visibility5 mi Precip0.84 in

GRR (destination) Gusts11 kt Ceilingnone (clear) 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.

G4 540 · SFB → GRR

Odds over time