Sit on the Left side of the plane for the best views on flights from Toronto to Bangkok. Left side wins both ends of the flight. Over the polar and Siberian routing, the left side also tends to face south toward more populated and geographically varied terrain across Russia and Central Asia, though at cruise altitude the view is largely featureless tundra and steppe. The bookend city views at Toronto and Bangkok make left the clear overall choice.

During takeoff from Lester B Pearson International (YYZ), sit on the Left side for the best views. YYZ departures heading east on runway 23/24 or climbing northeast give the left side a clear view over downtown Toronto and Lake Ontario. You get the CN Tower, the downtown core, and the broad expanse of the lake stretching to the horizon. Notable sights include: CN Tower and downtown Toronto skyline, Lake Ontario shoreline, Toronto Islands, Hamilton Harbour to the west.

When landing at Bangkok International (BKK), sit on the Left side for the best views. Suvarnabhumi Airport typically uses runways oriented roughly east-west. Approaches from the east on runway 19L/19R bring aircraft over the Gulf of Thailand and the flat Chao Phraya delta. Left side passengers get the best view of Bangkok's dense urban core and the Chao Phraya River snaking through the city as the aircraft descends. Notable sights include: Chao Phraya River bends through central Bangkok, Bangkok city centre density, flat agricultural patchwork of the central plains, Gulf of Thailand visible on approach.

The flight from Lester B Pearson International (YYZ) to Bangkok International (BKK) takes Approximately 15 to 17 hours depending on routing and winds.

The great circle route from YYZ to BKK typically tracks northeast over Hudson Bay, then across the northern Atlantic or more commonly westward across Canada and over Alaska, down through Russian Far East airspace, across Siberia and the vast West Siberian Plain, over the Ural Mountains as a low broad ridge visible in clear conditions, then descending through Central Asia and China. The Himalayas may be visible as a distant white wall on the southern horizon when crossing southern China or Tibet, though routing varies. The Gobi Desert and Mongolian steppe appear as vast brown-tan flatlands. Much of the Siberian leg is boreal taiga and frozen river systems visible as dark forest broken by wide braided rivers.