New service improvements and growth plans have been announced for Dublin Bus Airlink and its City and Coastal Tours services.

From today, Airlink will provide a 10 minute all day frequency service to Dublin Airport.

The number of daily trips has increased by 42% (from 140 to 199) Monday to Saturday - and earlier and later departure times of 4.45am and 12.30am have been scheduled.

There will also be an increase of four additional trips on Sundays.

Dublin Bus has seen strong performance across its commercial division - which includes Airlink, Open Top City Tours, Coastal Tours and Ghostbus Tours.

Financial results for 2014 show turnover of the commercial division of €15m - with 2015 passenger numbers showing a 5% increase to two million.

Specifically, Airlink passenger numbers have increased by 11% in 2015 up to 1.5 million.

Transport Minister Paschal Donohoe also announced that Dublin Bus is continuing to explore opportunities to develop services further, including a new Airlink route serving the southside of the city for 2016.

"The development of a new route will also, I am sure, come as great news to those living south of the Liffey, who will no doubt be looking forward to availing of it in the near future," he said.

"The growth that Airlink and City and Coastal Tours have been experiencing is on the back of an exceptionally buoyant tourism sector and their plans to mark our centenary year will add to their impressive performance result and help them to realise their targets for the year ahead", he added.