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.

DELTA · FLIGHT DL 509 LANDED 4:44 PM MT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Yesterday

DL 509 · SLC → JAC

took off 4:05 PM MT · landed 4:44 PM MT (scheduled time unknown)

Forecast issued Tue 10:00 PM ET · 4h after departure

Arrive at JAC more than 15 minutes late?

18% chance · ±0 pts −1 pt · 24h

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

What’s moving the odds

↑ Other factors

↑ SLC is busy at that time

↑ 4pm departures from SLC are often late

↓ Tuesdays in September are usually quieter than average

↓ This flight has been late 11% of the time recently

Weather at each end

SLC (origin) Gusts15 kt Ceiling6,500 ft Visibility10+ mi Precipnone

JAC (destination) Gusts7 kt Ceiling100 ft Visibility0.25 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.

DL 509 · SLC → JAC

Odds over time