Schedule: the flights that flew on Tuesday, Nov 3, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 720 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

UA 720 · DEN → YYC

departs 7:14 PM MT · arrives 10:55 PM CST
Forecast issued Mon 7:00 PM ET · 26h before departure

UA 720 isn’t flying DEN → YYC on Tue, Nov 10

This listing came from a typical schedule. According to the FAA, UA 720 flies these legs that day: