The airline will launch two daily Business Class only flights from London City Airport next year.
Flights to New York will stop at Shannon Airport for refuelling and to allow passengers to clear US immigration, flights to London are due to be non-stop.
The news has been welcomed by Shannon Airport’s director Martin Moroney, who said the service will provide a "significant and timely boost" for the Irish terminal, despite the fact that passengers will not be able to board in Shannon.
BA has yet to confirm its arrival airport in New York, but commercial director Robert Boyle said that it will benefit passengers in London.
"Our business-only service will be the most convenient way to travel between London and New York. Many City workers will be able to get from their desk to the aircraft in as little as 30 minutes," he commented.
Shannon recently welcomed new cheap flights to Berlin from Irish carrier Ryanair, which also offers flights to Birmingham, Dublin, Edinburgh and Tenerife from the airport.