Aer Lingus is to delay the start of its new transatlantic services between Manchester and the US due to delays in the reopening of international travel.
The routes between Manchester and New York and Orlando had been due to begin on July 29.
But in a statement the airline said that due to international borders opening later than expected it is now postponing the commencement.
However, a route to Barbados will proceed as planned.
"Aer Lingus (UK) Ltd remains fully committed to its services from Manchester Airport, and looks forward to launching to New York and Orlando on 30th September, and to Barbados on 20th October," the airline said.
"Aer Lingus is sorry for any inconvenience caused to customers," it added.
Customer service teams are contacting passengers who had been booked on the flights to offer them a full refund, re-accommodation on an alternative service or the option of a voucher.
The airline is currently grappling with the fallout from the collapse of its regional service provider Stobart Air last weekend.
On Friday it announced it has cancelled a number of flights to European destinations due to poor demand from customers.
It said the routes have been cancelled for the remainder of 2021.