The carrier will operate Toronto-Heathrow four times a day from April to October and fly six times a week to Manchester from June to September. Its seasonal Edinburgh schedule, meanwhile, will get under way earlier than usual on 1 March, operating through to January.
Air Canada cited "a tremendous rebound" in international flight demand this summer, particularly transatlantic, for its decision, adding it expected to operate 100% of its peak summer 2019 transatlantic capacity next year.
"We expect Europe will remain popular next year," said Air Canada executive vice-president of revenue and network planning Mark Galardo.
