Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
AMERICAN · FLIGHT AA 12SCHEDULED · TYPICAL SCHEDULE
AA 12 · LAX → BOS
departs 8:00 AM PT · arrives 4:38 PM ET
Forecast issued Thu 5:00 AM ET · 54h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
11%chance · ±0 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to BOS?
On time or early
88%
15–30 min late
4%
30 min–1 hour late
4%
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%.