Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
AMERICAN · FLIGHT AA 2534SCHEDULED · TYPICAL SCHEDULE
AA 2534 · PHL → SEA
departs 8:35 AM ET · arrives 11:40 AM PT
Forecast issued Fri 3:00 AM ET · 54h before departure
Odds over time
Arrive at SEA more than 15 minutes late?
14%chance · ±1 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to SEA?
On time or early
85%
15–30 min late
5%
30 min–1 hour late
4%
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%.