Schedule: a typical summer Tuesday (the flights of Jul 28, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
UNITED · FLIGHT UA 2661SCHEDULED · TYPICAL SCHEDULE
UA 2661 · PHL → SFO
departs 6:00 AM ET · arrives 8:58 AM PT
Forecast issued Tue 10:00 PM ET · 16h after departure
Odds over time
Arrive at SFO more than 15 minutes late?
8%chance · ±0 pts+0 pts · 24h
HOW SURE WE AREVery high. The odds now come almost entirely from live conditions.
How late will it get to SFO?
On time or early
91%
15–30 min late
2%
30 min–1 hour late
3%
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%.