Schedule: the flights that flew on Monday, Nov 9, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1639SCHEDULED · TYPICAL SCHEDULE
UA 1639 · DEN → STL
departs 1:55 PM MT · arrives 5:16 PM CT
Forecast issued Sat 11:00 PM ET · 41h before departure
Odds over time
Arrive at STL more than 15 minutes late?
14%chance · ±1 pts+1 pt · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to STL?
On time or early
85%
15–30 min late
5%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.