The carrier will operate three flights a week to Vancouver International airport, until October 7.
The launch is the airline’s second seasonal route from Gatwick, having launched a Toronto service last summer.
Flights will operate using a 282-seat Boeing 767 on Tuesday, Thursday and Saturday, departing midday and arriving Vancouver at 2.10pm.
Return services will depart Vancouver at 4.45pm, arriving at Gatwick at 10.25am the following day.
Stephen Gerrard, general manager, sales UK and Ireland. said: “Our customers can now fly non-stop with Air Canada Rouge to Western Canada with onward connections to our extensive global network. We offer a host of Air Canada benefits, all at competitive fares.”
