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 9966 LANDED 10:04 AM MT, ~10 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, October 27

DL 9966 · SEA → SLC

took off 7:33 AM PT · landed 10:04 AM MT (scheduled time unknown)

Forecast issued Tue 11:00 PM ET · 12h after departure

Arrive at SLC more than 15 minutes late?

14% chance · ±0 pts – · 24h

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

What’s moving the odds

↑ Other factors

↑ SEA is busy at that time

↑ SLC is prone to delays

↓ Early flights usually leave on time

↓ Tuesdays in October are usually quieter than average

Weather at each end

SEA (origin) Gusts24 kt Ceiling600 ft Visibility9 mi Precip0.04 in

SLC (destination) Gusts15 kt Ceiling9,000 ft Visibility5 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 9966 · SEA → SLC

Odds over time