Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 641SCHEDULED · TYPICAL SCHEDULE
Tomorrow
UA 641 · ATL → IAD
departs 5:30 AM ET · arrives 7:20 AM ET
Forecast issued Fri 1:00 PM ET · 16h before departure
Odds over time
Arrive at IAD more than 15 minutes late?
5%chance · ±1 pts−1 pt · 24h
HOW SURE WE AREGood. The odds now lean mostly on firmed-up weather forecasts.
How late will it get to IAD?
On time or early
95%
15–30 min late
1%
30 min–1 hour late
<1%
1–2 hours late
1%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.