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.
UNITED · FLIGHT UA 684SCHEDULED · TYPICAL SCHEDULE
UA 684 · IAD → LAX
departs 3:15 PM ET · arrives 5:47 PM PT
Forecast issued Thu 4:00 AM ET · 59h before departure
Odds over time
Arrive at LAX more than 15 minutes late?
13%chance · ±2 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to LAX?
On time or early
86%
15–30 min late
6%
30 min–1 hour late
3%
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%.