Cincinnati→OntarioNonstop Flight TimeCVG–ONT

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

Direct flights from CVG to ONT have an estimated flight time of about 4h 24m, based on the 1,850-mile great-circle distance. Our current captured departure sample includes 1-2/day across 2 captured airlines, with Alaska Airlines appearing most often in that sample. Captured departure times run from 00:40 to 04:15 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for CVG to ONT, last seen June 15, 2026. Frequency uses 8 scheduled departures across 7 observed days; 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.