Sit on the Left side of the plane for the best views on flights from Toronto to Barcelona. Left side wins at both ends of the flight. During the transatlantic cruise, the left side also faces south, offering views of the Gulf of St. Lawrence, the southern tip of Greenland if the routing goes far north, and eventually the coastlines of Ireland and France as the flight descends toward Spain. Right side faces north into open ocean for most of the crossing.

During takeoff from Lester B Pearson International (YYZ), sit on the Left side for the best views. YYZ typically departs eastbound on runways 05/06L/06R, meaning a left-side seat faces north toward Lake Simcoe and the city of Toronto. As the aircraft climbs and turns northeast, the left side gets a clear view of downtown Toronto's skyline and the western Lake Ontario shoreline. Right-side passengers mostly see suburban sprawl. Notable sights include: Downtown Toronto skyline including CN Tower, western Lake Ontario shoreline, Toronto Islands, Lake Simcoe to the north.

When landing at Barcelona (BCN), sit on the Left side for the best views. Barcelona El Prat typically lands on runway 25L/25R from the east, meaning the aircraft approaches from the Mediterranean side. Left-side seats face south toward the sea and get a view of the Barcelona coastline, the city grid, and the Montjuic hill. Right-side seats face north toward the flat Llobregat delta and industrial outskirts. Notable sights include: Barcelona city grid and coastline, Montjuic hill, Mediterranean Sea, Llobregat river delta.

The flight from Lester B Pearson International (YYZ) to Barcelona (BCN) takes Approximately 7 to 8 hours.

The flight typically tracks northeast over the Gulf of St. Lawrence and Nova Scotia, then crosses the North Atlantic on a great circle route passing south of Greenland or over the Labrador Sea. Mid-flight passes over the North Atlantic with no land visible for several hours. The European landfall is usually over Ireland or southwestern England, followed by a crossing of France with the Loire Valley and Pyrenees visible before descending into Catalonia.