Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 794 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30

UA 794 · ORD → BOS

departs 12:53 PM CT · arrives 4:29 PM ET

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

Arrive at BOS more than 15 minutes late?

64% chance · ±0 pts +8 pts · 24h

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

How late will it get to BOS?

On time or early
36%
15–30 min late
17%
30 min–1 hour late
27%
1–2 hours late
13%
Over 2 hours late
6%
Cancelled
2%

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

What’s moving the odds

↑ Cloud base down to 500 ft, visibility down to 1.75 mi, 0.9 in of rain forecast at ORD that day

↑ 12pm departures from ORD are often late

↑ Arrivals into BOS at that hour are often late

↓ Wednesdays in September are usually quieter than average

↓ Other factors

Weather at each end

ORD (origin) Gusts19 kt Ceiling500 ft Visibility1.75 mi Precip0.95 in

BOS (destination) Gusts8 kt Ceiling700 ft Visibility2 mi Precip0.02 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 794 · ORD → BOS

Odds over time

How late will it get to BOS?