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 840SCHEDULED · TYPICAL SCHEDULE
UA 840 · ORD → ANC
departs 9:04 AM CT · arrives 12:56 PM AKT
Forecast issued Thu 10:00 PM ET · 36h before departure
Odds over time
Arrive at ANC more than 15 minutes late?
12%chance · ±0 pts−2 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to ANC?
On time or early
88%
15–30 min late
4%
30 min–1 hour late
5%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.