Schedule: the flights that flew on Tuesday, Oct 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1903 SCHEDULED · TYPICAL SCHEDULE

Tuesday, October 13 Tomorrow

UA 1903 · GUA → IAH

departs 12:25 PM CST · arrives 4:24 PM CT

Forecast issued Mon 11:00 AM ET · 27h before departure

Arrive at IAH more than 15 minutes late?

31% chance · ±2 pts +5 pts · 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
68%
15–30 min late
20%
30 min–1 hour late
2%
1–2 hours late
7%
Over 2 hours late
2%
Cancelled
<1%

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

What’s moving the odds

↑ Cloud base down to 900 ft forecast at IAH that day

↑ Arrivals into IAH at that hour are often late

↑ This route's recent record

↓ Mostly benign weather forecast at GUA

↓ Tuesdays in October are usually quieter than average

Weather at each end

GUA (origin) Gusts8 kt Ceilingnone (clear) Visibility10+ mi Precipnone

IAH (destination) Gusts20 kt Ceiling900 ft Visibility9 mi Precip0.20 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 1903 · GUA → IAH

Odds over time

How late will it get to IAH?