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 1939 · PDX → SFO
departs 8:53 AM PT · arrives 10:49 AM PT
UA 1939 isn’t flying PDX → SFO today
This listing came from a typical schedule. According to the FAA, UA 1939 flies these legs today: