Emerald Airlines, which operates the Aer Lingus Regional franchise, has announced additional flights for the winter season.
The carrier will fly between both Dublin and Southampton and Dublin and Aberdeen.
Flights will begin from October 30th.
It brings to 22 the total number of routes that the relatively new airline is operating.
"After a very successful summer season, we are delighted to be upping our frequencies and adding new routes out of Dublin to/from Aberdeen and Southampton," said Ciarán Smith, Head of Commercial at Emerald Airlines.
"The new routes form part of Emerald Airlines' wider expansion strategy, which will come to fruition over the coming months; seeing the delivery of five additional aircraft, adding further capacity, and increasing frequencies."
Emerald currently operates from bases at Dublin and Belfast City Airports.
It was awarded a ten year contract by Aer Lingus to operate the regional service in August of last year.
It began flights in February of this year.