This boosts capacity to Northern Kentucky International Airport by up to 60%, the airline says.
First launched in 2023, the route remains the only nonstop air link to the UK from the Kentucky, Ohio and Indiana region.
As well as an increase in frequencies from five to six flights per week through October 2026, Cincinnati flights will be operated on larger aircraft.
The Boeing 787 800 aircraft will be upgraded to a larger Boeing 777 200 jet.
The new configuration includes 48 Club World business class suites, 40 World Traveller Plus premium economy seats and 184 World Traveller economy seats.
It’s a timely vote of confidence for the Cincy Region, which is preparing for a standout year of landmark events and major cultural moments during the nation’s 250th anniversary year.