Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 588 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3 Tomorrow

UA 588 · DEN → IAH

departs 4:20 PM MT · arrives 7:57 PM CT

Forecast issued Fri 2:00 AM ET · 40h before departure

Arrive at IAH more than 15 minutes late?

34% chance · ±11 pts +1 pt · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to IAH?

On time or early
65%
15–30 min late
16%
30 min–1 hour late
6%
1–2 hours late
9%
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

↑ Cloud base down to 1,100 ft, 0.3 in of rain forecast at IAH that day

↑ Arrivals into IAH at that hour are often late

↑ 4pm departures from DEN are often late

↓ Saturdays in October are usually quieter than average

↓ UA's recent on-time record

Weather at each end

DEN (origin) Gusts20 kt Ceilingnone (clear) Visibility10+ mi Precipnone

IAH (destination) Gusts15 kt Ceiling1,100 ft Visibility8 mi Precip0.31 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 588 · DEN → IAH

Odds over time

How late will it get to IAH?