Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
AMERICAN · FLIGHT AA 1556SCHEDULED · TYPICAL SCHEDULE
Yesterday
AA 1556 · DCA → BOS
departs 8:32 AM ET · arrives 10:11 AM ET
Forecast issued Thu 10:00 PM ET · 14h after departure
Odds over time
Arrive at BOS more than 15 minutes late?
15%chance · ±0 pts−18 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to BOS?
On time or early
85%
15–30 min late
6%
30 min–1 hour late
3%
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%.