Schedule: the flights that flew on Tuesday, Oct 20, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
Today
UA 1845 · IAH → SFO
departs 6:18 AM CT · arrives 8:19 AM PT
UA 1845 isn’t flying IAH → SFO today
This listing came from a typical schedule. According to the FAA, UA 1845 flies these legs today: