Sit on the Left side of the plane for the best views on flights from London to Toronto. The takeoff right-side advantage is relatively brief and modest. The left side wins overall because the Toronto approach delivers a genuinely dramatic payoff — Lake Ontario and the CN Tower skyline are among the most recognisable urban aerial views in North America, and left-side passengers get it head-on during the final 20 minutes of descent.

During takeoff from Gatwick (LGW), sit on the Right side for the best views. Gatwick's runway 26L/26R departure heads westward, putting the right side facing north toward London. You get a clear view of the North Downs, Reigate, and the M25 corridor as the aircraft climbs and banks northwest. The left side faces south toward the relatively featureless Weald. Notable sights include: North Downs ridge, M25 motorway corridor, Reigate town, Crawley urban grid below.

When landing at Lester B Pearson International (YYZ), sit on the Left side for the best views. Pearson's most common arrival is runway 06L/06R or 23, depending on wind. On the dominant westerly approach (landing runway 23), aircraft track in from the northeast over Lake Simcoe and the Oak Ridges Moraine, with the left side offering views of Lake Ontario's northern shore and the Toronto skyline. The right side faces north toward less distinctive suburban sprawl. Notable sights include: Lake Ontario northern shoreline, Toronto downtown skyline (CN Tower visible), Lake Simcoe to the north, Humber River valley.

The flight from Gatwick (LGW) to Lester B Pearson International (YYZ) takes Approximately 8 to 8.5 hours.

The flight tracks northwest over southern England, then crosses the Irish Sea near Dublin before heading out over the North Atlantic. The route passes south of Greenland's ice cap (visible as a white mass on the horizon in clear conditions), crosses the Labrador coast near Goose Bay with its boreal forest and river systems, then tracks southwest over Quebec and Ontario. Hudson Bay may be visible to the north on clear days. The Canadian Shield's lake-dotted granite terrain is distinctive over central Quebec and Ontario.