Schedule: the flights that flew on Thursday, Nov 5, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1904 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

UA 1904 · ORD → ONT

departs 4:19 PM CT · arrives 6:43 PM PT
Forecast issued Wed 12:00 PM ET · 29h before departure

UA 1904 isn’t flying ORD → ONT on Thu, Nov 12

This listing came from a typical schedule. According to the FAA, UA 1904 flies these legs that day: