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 815 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4

AA 815 · BOS → MIA

departs 10:56 AM ET · arrives 2:30 PM ET

Forecast issued Thu 10:00 PM ET · 61h before departure

Arrive at MIA more than 15 minutes late?

11% chance · ±0 pts – · 24h

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

How late will it get to MIA?

On time or early
88%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
2%
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 MIA at that hour are often late

↑ MIA is prone to delays

↓ Mostly benign weather forecast at BOS

↓ Early flights usually leave on time

Weather at each end

BOS (origin) Gusts15 kt Ceiling11,000 ft Visibility10+ mi Precipnone

MIA (destination) Gusts21 kt Ceilingnone (clear) 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 815 · BOS → MIA

Odds over time

How late will it get to MIA?