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 1742SCHEDULED · TYPICAL SCHEDULE
Yesterday
UA 1742 · SMF → IAD
departs 8:09 AM PT · arrives 4:15 PM ET
Forecast issued Fri 10:00 PM ET · 11h after departure
Odds over time
Arrive at IAD more than 15 minutes late?
10%chance · ±0 pts−4 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to IAD?
On time or early
89%
15–30 min late
5%
30 min–1 hour late
3%
1–2 hours late
<1%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.