Emerald Airlines, the operator of Aer Lingus Regional services, has put tickets on sale for services from its Belfast City Airport base.
Passengers can book flights to Birmingham, Edinburgh, Leeds Bradford, Manchester, Glasgow and Exeter.
The Birmingham service starts on March 24; flights to Edinburgh, Leeds Bradford and Manchester begin on March 27; and Glasgow and Exeter will launch from early May.
Thanks to a codeshare agreement, flights can be booked through Aer Lingus and British Airways, and passengers can earn Avios loyalty points.
Conor McCarthy, chief executive of Emerald Airlines, said: “We’re keen to build upon our announcement today, with more flights, destinations, and great fares to follow in the very near future.”
The new routes are the result of a long-term partnership between Belfast City Airport and Emerald Airlines.
Matthew Hall, chief executive at the airport, said the facility is seeing an increasing demand for travel as Covid restrictions ease.
“The Aer Lingus Regional product is one with which our customers are familiar, and we’re thrilled that flights are bookable through both Aer Lingus and British Airways for added convenience,” he said.
Aer Lingus and BA services to London City and Heathrow from Belfast City remain unchanged.