When flying from Cardiff to Cincinnati, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Cardiff and Cincinnati for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.
When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Cardiff is roughly less than Cincinnati. You can assume this to be the case over the next 11 days.
Temperatures around the 30 °Cs can be experienced in July. The weather in Cincinnati is hotter than in Cardiff. Plan for potential changes in flight availability as peak weather approaches in this location.