Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
AMERICAN · FLIGHT AA 3100SCHEDULED · TYPICAL SCHEDULE
Tomorrow
AA 3100 · LGA → ORD
departs 9:44 AM ET · arrives 11:30 AM CT
Forecast issued Wed 8:00 PM ET · 14h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
25%chance · ±4 pts+8 pts · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to ORD?
On time or early
73%
15–30 min late
6%
30 min–1 hour late
9%
1–2 hours late
4%
Over 2 hours late
4%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.