Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1921 SCHEDULED · TYPICAL SCHEDULE

Wednesday, October 28 Yesterday

UA 1921 · ORD → IAH

departs 5:50 PM CT · arrives 8:33 PM CT

Forecast issued Wed 11:00 PM ET · 4h after departure

Arrive at IAH more than 15 minutes late?

37% chance · ±1 pts +9 pts · 24h

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

How late will it get to IAH?

On time or early
62%
15–30 min late
21%
30 min–1 hour late
8%
1–2 hours late
5%
Over 2 hours late
3%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ UA's recent on-time record

↑ 5pm departures from ORD are often late

↑ Arrivals into IAH at that hour are often late

↓ Mostly benign weather forecast at ORD

↓ Wednesdays in October are usually quieter than average

Weather at each end

ORD (origin) Gusts19 kt Ceiling9,000 ft Visibility10+ mi Precipnone

IAH (destination) Gusts10 kt Ceiling3,900 ft Visibility4 mi Precip0.05 in

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 1921 · ORD → IAH

Odds over time

How late will it get to IAH?