Schedule: a typical summer Tuesday (the flights of Jul 28, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1641 SCHEDULED · TYPICAL SCHEDULE

Tuesday, September 29

UA 1641 · PDX → ORD

departs 10:46 AM PT · arrives 5:00 PM CT

Forecast issued Tue 10:00 PM ET · 8h after departure

Arrive at ORD more than 15 minutes late?

22% chance · ±0 pts +5 pts · 24h

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

How late will it get to ORD?

On time or early
77%
15–30 min late
9%
30 min–1 hour late
3%
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

↑ Arrivals into ORD at that hour are often late

↑ 10am departures from PDX are often late

↑ This flight has been late 25% of the time recently

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at PDX

Weather at each end

PDX (origin) Gusts16 kt Ceiling2,700 ft Visibility7 mi Precipnone

ORD (destination) Gusts16 kt Ceiling100 ft Visibility0.5 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 1641 · PDX → ORD

Odds over time

How late will it get to ORD?