Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1783SCHEDULED · TYPICAL SCHEDULE
Yesterday
UA 1783 · LAX → BOS
departs 8:35 AM PT · arrives 5:20 PM ET
Forecast issued Fri 10:00 PM ET · 10h after departure
Odds over time
Arrive at BOS more than 15 minutes late?
20%chance · ±0 pts−13 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to BOS?
On time or early
79%
15–30 min late
8%
30 min–1 hour late
6%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.