Air Canada has a very low $210 one way fare from Toronto YYZ to London Gatwick available for many dates in June and $227 to $240 one way for half the dates in July. The fare is far higher for the return, yet fares are as low as $500 round trip in early June and $610 for mid-June outbound with early July return. Competition in Toronto from low cost carriers Westjet and WOW Airlines are the likely catalyst for these low June and July summer fares to London from Air Canada.
There are eight dates in June with one way fare YYZ-LGW at $210 and eight dates at $240. July 12 and 13 are $227 and July 7, 14, 21 are $248 one way.
The deal here is primarily one-way to London for July departures. Return fares are priced over $800 to depart in July and return in July.
Air Canada Toronto YYZ – London LGW
$227.68 USD ($294.16 CAD) Tuesday July 12
Air Canada Toronto YYZ – London LHR
$609.99 USD ($788.10 CAD) Monday June 13 – Monday July 4