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.

UNITED · FLIGHT UA 284 LANDED 7:13 AM ET, ~17 MIN LATE · SCHEDULED TIME UNKNOWN

Wednesday, September 30

UA 284 · LAS → IAD

took off 12:11 AM PT · landed 7:13 AM ET (scheduled time unknown)

Forecast issued Wed 10:00 PM ET · 19h after departure

Arrive at IAD more than 15 minutes late?

14% chance · ±0 pts +5 pts · 24h

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

What’s moving the odds

↑ Other factors

↑ UA's recent on-time record

↑ LAS is prone to delays

↓ Early flights usually leave on time

↓ Wednesdays in September are usually quieter than average

Weather at each end

LAS (origin) Gusts18 kt Ceilingnone (clear) Visibility10+ mi Precipnone

IAD (destination) Gusts8 kt Ceiling5,000 ft 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.

UA 284 · LAS → IAD

Odds over time