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 1840SCHEDULED · TYPICAL SCHEDULE
Yesterday
UA 1840 · DEN → SLC
departs 1:40 PM MT · arrives 3:13 PM MT
Forecast issued Fri 10:00 PM ET · 6h after departure
Odds over time
Arrive at SLC more than 15 minutes late?
19%chance · ±0 pts+3 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to SLC?
On time or early
81%
15–30 min late
7%
30 min–1 hour late
7%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.