Canadian airline WestJet is to launch a new service between Toronto and Dublin from next year.

The new service is set to operate four times a week from May next year, and will increase to a daily service by June.

The new WestJet service between Toronto and Dublin Airport will operate on its Boeing 737 MAX aircraft.

Vincent Harrison, Dublin Airport's Managing Director, said the new service from Dublin Airport to Toronto complements the airline's existing Halifax and Calgary services.

"It's a welcome boost to transatlantic connectivity and great to see another Canadian destination added to our growing Dublin Airport network and to witness the further expansion of WestJet's operation here in Ireland," Mr Harrison said.

"We have been working closely with WestJet since 2014 to grow its business and build a substantial base here in Dublin.

"This new service between Toronto and Dublin further cements the strong and enduring cultural and business ties between our two great countries," he added.

John Weatherill, WestJet Chief Commercial Officer, said that as demand increases, travellers will be looking for convenient and affordable options for travel between Canada and Europe.

"As we continue to focus on expanding our network from our Toronto hub where we offer 33 international destinations, these flights will further strengthen business and leisure ties between Canada and Ireland and will increase connectivity between two key markets," he added.