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 2539SCHEDULED · TYPICAL SCHEDULE
Today
AA 2539 · MIA → BOS
departs 8:20 PM ET · arrives 11:41 PM ET
Forecast issued Tue 3:00 PM ET · 5h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
41%chance · ±3 pts−4 pts · 24h
HOW SURE WE AREHigh. The odds now come mostly from live FAA and airport data.
How late will it get to BOS?
On time or early
58%
15–30 min late
15%
30 min–1 hour late
11%
1–2 hours late
11%
Over 2 hours late
3%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.