Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 1721SCHEDULED · TYPICAL SCHEDULE
UA 1721 · SFO → KOA
departs 8:10 AM PT · arrives 10:40 AM HT
Forecast issued Tue 1:00 AM ET · 34h before departure
Odds over time
Arrive at KOA more than 15 minutes late?
16%chance · ±2 pts+2 pts · 24h
HOW SURE WE AREModerate. The odds now blend history with early weather forecasts.
How late will it get to KOA?
On time or early
83%
15–30 min late
4%
30 min–1 hour late
9%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.