Ontario→CincinnatiNonstop Flight TimeONT–CVG

Ontario (Ontario International Airport) to Cincinnati (Cincinnati/Northern Kentucky International Airport).

Direct flights from ONT to CVG have an estimated flight time of about 4h 24m, based on the 1,850-mile great-circle distance. Our current captured departure sample includes weekly across 1 captured airline, with Alaska Airlines appearing most often in that sample. Captured departure times run from 10:12 to 10:12 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for ONT to CVG, last seen June 15, 2026. Frequency uses 1 scheduled departures across 1 observed day; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.