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 1727SCHEDULED · TYPICAL SCHEDULE
UA 1727 · BUF → DEN
departs 9:00 AM ET · arrives 10:35 AM MT
Forecast issued Fri 10:00 PM ET · 13h after departure
Odds over time
Arrive at DEN more than 15 minutes late?
11%chance · ±0 pts−8 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to DEN?
On time or early
88%
15–30 min late
5%
30 min–1 hour late
2%
1–2 hours late
1%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.