Ryanair will launch a twice weekly service from Cardiff to Belfast next April.
Flights will operate only during the summer. Fares start from £29.99.
The airline has also announced that it has reached a four-year pay deal with its Irish pilots.
As part of the agreement, Ryanair will fully reverse the pay cuts imposed during the pandemic, from December.
Pilots will also receive three years’ of pay rises spread over the next four years, up to March 2027, said Ryanair.
