Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SKYWEST · FLIGHT OO 5598 SCHEDULED · TYPICAL SCHEDULE

Wednesday, September 30 Today

OO 5598 · MLI → ORD

departs 6:30 AM CT · arrives 7:45 AM CT

Forecast issued Wed 10:00 PM ET · 14h after departure

OO 5598 isn’t flying MLI → ORD today

This listing came from a typical schedule. According to the FAA, OO 5598 flies these legs today:

DEN → SAT · 8:45 PM · landed
DEN → SAT · 8:53 PM · scheduled
DEN → SAT · 8:45 PM · scheduled