Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 663SCHEDULED · TYPICAL SCHEDULE
UA 663 · DEN → MFR
departs 7:31 PM MT · arrives 9:17 PM PT
Forecast issued Fri 1:00 PM ET · 56h before departure
Odds over time
Arrive at MFR more than 15 minutes late?
33%chance · ±5 pts– · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to MFR?
On time or early
67%
15–30 min late
18%
30 min–1 hour late
8%
1–2 hours late
4%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.