Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1646SCHEDULED · TYPICAL SCHEDULE
UA 1646 · DEN → BWI
departs 5:53 PM MT · arrives 11:30 PM ET
Forecast issued Wed 10:00 PM ET · 2h after departure
Odds over time
Arrive at BWI more than 15 minutes late?
41%chance · ±2 pts−17 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to BWI?
On time or early
58%
15–30 min late
25%
30 min–1 hour late
8%
1–2 hours late
5%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.