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 4:31 PM MT, ~7 MIN LATE · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Today

DL 509 · SLC → JAC

took off 3:54 PM MT · landed 4:31 PM MT (scheduled time unknown)

Forecast issued Wed 8:00 PM ET · 2h after departure

Arrive at JAC more than 15 minutes late?

19% chance · ±0 pts +8 pts · 24h

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

What’s moving the odds

↑ Other factors

↑ Later flights pick up delays from earlier in the day

↑ SLC is busy at that time

↓ Mostly benign weather forecast at JAC

↓ Wednesdays in September are usually quieter than average

Weather at each end

SLC (origin) Gusts17 kt Ceilingnone (clear) Visibility10+ mi Precipnone

JAC (destination) Gusts7 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.

DL 509 · SLC → JAC

Odds over time