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 1803 SCHEDULED · TYPICAL SCHEDULE

Tuesday, October 13

UA 1803 · ORD → LAS

departs 11:14 AM CT · arrives 1:20 PM PT

Forecast issued Sun 11:00 AM ET · 49h before departure

Arrive at LAS more than 15 minutes late?

12% chance · ±4 pts – · 24h

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

How late will it get to LAS?

On time or early
87%
15–30 min late
5%
30 min–1 hour late
4%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
<1%

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

What’s moving the odds

↑ LAS is prone to delays

↑ 11am departures from ORD are often late

↑ Arrivals into LAS at that hour are often late

↓ Tuesdays in October are usually quieter than average

↓ Mostly benign weather forecast at LAS

Weather at each end

ORD (origin) Gusts19 kt Ceiling11,000 ft Visibility10+ mi Precip0.02 in

LAS (destination) Gusts13 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 1803 · ORD → LAS

Odds over time

How late will it get to LAS?