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 2099 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3 Tomorrow

UA 2099 · ORD → SEA

departs 8:45 AM CT · arrives 11:38 AM PT

Forecast issued Fri 5:00 AM ET · 29h before departure

Arrive at SEA more than 15 minutes late?

14% chance · ±0 pts +0 pts · 24h

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

How late will it get to SEA?

On time or early
85%
15–30 min late
8%
30 min–1 hour late
4%
1–2 hours late
2%
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

↑ 8am departures from ORD are often late

↑ SEA is prone to delays

↑ This flight has been late 16% of the time recently

↓ Mostly benign weather forecast at ORD

↓ Other factors

Weather at each end

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

SEA (destination) Gusts12 kt Ceiling400 ft Visibility8 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 2099 · ORD → SEA

Odds over time

How late will it get to SEA?