Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

AMERICAN · FLIGHT AA 2340 SCHEDULED · TYPICAL SCHEDULE

Tuesday, September 29 Today

AA 2340 · ORD → BOI

departs 11:30 AM CT · arrives 2:20 PM MT

Forecast issued Tue 3:00 PM ET · 2h after departure

Arrive at BOI more than 15 minutes late?

25% chance · ±0 pts +12 pts · 24h

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

How late will it get to BOI?

On time or early
74%
15–30 min late
11%
30 min–1 hour late
10%
1–2 hours late
2%
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

↑ AA's recent on-time record

↑ 11am departures from ORD are often late

↑ This flight has been late 22% of the time recently

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at BOI

Weather at each end

ORD (origin) Gusts11 kt Ceiling100 ft Visibility0.5 mi Precipnone

BOI (destination) Gusts16 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 · ORD → BOI

Odds over time

How late will it get to BOI?