Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

AMERICAN · FLIGHT AA 2340 SCHEDULED · TYPICAL SCHEDULE

Saturday, October 3

AA 2340 · BOI → ORD

departs 3:12 PM MT · arrives 8:04 PM CT

Forecast issued Fri 12:00 AM ET · 41h before departure

Arrive at ORD more than 15 minutes late?

22% chance · ±2 pts +0 pts · 24h

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

How late will it get to ORD?

On time or early
78%
15–30 min late
7%
30 min–1 hour late
9%
1–2 hours late
3%
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

↑ This flight has been late 31% of the time recently

↑ Later flights pick up delays from earlier in the day

↓ Mostly benign weather forecast at ORD

↓ BOI usually runs smoothly

Weather at each end

BOI (origin) Gusts8 kt Ceilingnone (clear) Visibility10+ mi Precipnone

ORD (destination) Gusts8 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 2340 · BOI → ORD

Odds over time

How late will it get to ORD?