Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

AMERICAN · FLIGHT AA 403 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2 Today

AA 403 · ORD → BUF

departs 9:19 PM CT · arrives 11:59 PM ET

Forecast issued Fri 5:00 PM ET · 5h before departure

Arrive at BUF more than 15 minutes late?

40% chance · ±0 pts +7 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

How late will it get to BUF?

On time or early
58%
15–30 min late
12%
30 min–1 hour late
11%
1–2 hours late
13%
Over 2 hours late
2%
Cancelled
3%

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

What’s moving the odds

↑ This flight has been late 48% of the time recently

↑ 9pm departures from ORD are often late

↑ Later flights pick up delays from earlier in the day

↓ Mostly benign weather forecast at ORD

↓ Fridays in October are usually quieter than average

Weather at each end

ORD (origin) Gusts16 kt Ceiling2,800 ft Visibility9 mi Precip0.10 in

BUF (destination) Gusts22 kt Ceiling600 ft Visibility3 mi Precip0.36 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.

AA 403 · ORD → BUF

Odds over time

How late will it get to BUF?