ATL → ORD: cancellations & delays
Over Jan 2023 - Apr 2026, 1.5% of Hartsfield Jackson Atlanta International Airport (ATL) to Chicago O'Hare International Airport (ORD) flights were cancelled and 25.8% arrived at least 15 minutes late, across 19,995 flights, flown by DL, UA, AA, F9, NK, MQ. Cancellations peak in July.
Check today's live ATL departures →Airport pages: Hartsfield Jackson Atlanta International Airport (ATL) · 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.