Lowest Prices
Uncover the best deals on Ontario to Cincinnati flights by comparing fares from hundreds of airlines and agencies.
Useful information for finding best airline tickets from Ontario International to Cincinnati Northern Kentucky International on your next trip.
Cheapest Round Trip Flight
$346
Delta Airlines
• 1 stop
• 10h 27m
Jan 17 – Jan 21
The cheapest round trip flight from Ontario to Cincinnati (ONT-CVG-ONT) is currently $346
Cheapest One way Flight
$698
Southwest Airlines
• 1 stop
• 9h 10m
Nov 09
The cheapest one way flight from Ontario to Cincinnati (ONT-CVG) is currently $698
Fastest Flight
9h 5m
The fastest nonstop flight from Ontario to Cincinnati (ONT-CVG) takes 9h 5m
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | Cincinnati Northern Kentucky International , Cincinnati, US |
| Distance | 1854 miles |