COS → ORD: cancellations & delays
Over Jan 2023 - Apr 2026, 0.8% of City of Colorado Springs Municipal Airport (COS) to Chicago O'Hare International Airport (ORD) flights were cancelled and 18.8% arrived at least 15 minutes late, across 2,398 flights, flown by OO, UA. Cancellations peak in March.
Check today's live COS departures →Airport pages: City of Colorado Springs Municipal Airport (COS) · Chicago O'Hare International Airport (ORD)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.