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 2139 LANDED 11:32 AM MT, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Yesterday

UA 2139 · ORD → BOI

took off 9:24 AM CT · landed 11:32 AM MT (scheduled time unknown)

Forecast issued Wed 10:00 PM ET · 12h after departure

Arrive at BOI more than 15 minutes late?

45% chance · ±0 pts +12 pts · 24h

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

What’s moving the odds

↑ Cloud base down to 500 ft, visibility down to 1.75 mi, 0.9 in of rain forecast at ORD that day

↑ 9am departures from ORD are often late

↑ ORD is prone to delays

↓ Wednesdays in September are usually quieter than average

↓ Early flights usually leave on time

Weather at each end

ORD (origin) Gusts19 kt Ceiling500 ft Visibility1.75 mi Precip0.95 in

BOI (destination) Gusts19 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 2139 · ORD → BOI

Odds over time