Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

SKYWEST · FLIGHT OO 4778 SCHEDULED · TYPICAL SCHEDULE

Wednesday, October 28 Tomorrow

OO 4778 · GRR → ORD

departs 5:45 AM ET · arrives 5:51 AM CT

Forecast issued Tue 5:00 AM ET · 25h before departure

OO 4778 isn’t flying GRR → ORD on Wed, Oct 28

This listing came from a typical schedule. According to the FAA, OO 4778 flies these legs that day:

COS → ORD · 12:12 PM · scheduled
COS → ORD · 12:36 PM · scheduled