About 1 in 29 UA 487 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (3%); 0.3% were cancelled. The typical flight landed 18 minutes early.
UA 487: IAH → SFO
Scheduled to leave Houston at 5:22 a.m. local time. Over the past year it arrived on time 97% of the time (319 flights), in line with other UA flights on the route at that hour (97%). Last seen in the data Aug 10, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 46 | 91% |
| Tuesday | 45 | 100% |
| Wednesday | 44 | 95% |
| Thursday | 46 | 100% |
| Friday | 46 | 98% |
| Saturday | 46 | 96% |
| Sunday | 46 | 96% |
Why it was late
All flights IAH → SFO · Connecting off UA 487? Check the risk
Questions
How often is UA 487 from IAH to SFO late?
United Airlines 487 from Houston, TX to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 3% of 319 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.