Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

AMERICAN · FLIGHT AA 2303 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4

AA 2303 · ORD → BOS

departs 3:08 PM CT · arrives 6:47 PM ET

Forecast issued Fri 7:00 AM ET · 57h before departure

Arrive at BOS more than 15 minutes late?

37% chance · ±1 pts – · 24h

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

How late will it get to BOS?

On time or early
63%
15–30 min late
11%
30 min–1 hour late
14%
1–2 hours late
9%
Over 2 hours late
3%
Cancelled
<1%

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

What’s moving the odds

↑ This flight has been late 42% of the time recently

↑ Arrivals into BOS at that hour are often late

↑ 3pm departures from ORD are often late

↓ Mostly benign weather forecast at ORD

Weather at each end

ORD (origin) Gusts13 kt Ceilingnone (clear) Visibility10+ mi Precipnone

BOS (destination) Gusts15 kt Ceiling1,700 ft 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.

AA 2303 · ORD → BOS

Odds over time

How late will it get to BOS?