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 1553 SCHEDULED · SCHEDULED TIME UNKNOWN

Saturday, October 3 Today

UA 1553 · TYS → ORD

departs 6:17 AM ET · arrives 6:37 AM CT

Forecast issued Sat 4:00 AM ET · 2h before departure

Arrive at ORD more than 15 minutes late?

20% chance · ±0 pts – · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ 0.6 in of rain forecast at TYS that day

↑ UA's recent on-time record

↑ ORD is busy at that time

↓ Early flights usually leave on time

↓ 5am departures from TYS are usually not late

Weather at each end

TYS (origin) Gusts8 kt Ceiling2,700 ft Visibility4 mi Precip0.50 in

ORD (destination) Gusts8 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.

UA 1553 · TYS → ORD

Odds over time