Sit on the Left side of the plane for the best views on flights from St. Louis to Toronto. While takeoff offers the Mississippi River spectacle, the landing approach into Toronto provides more sustained and dramatic scenery—Lake Ontario's expanse and the Toronto Islands are visually superior to the midpoint terrain (flat Ohio and Pennsylvania farmland). Left side captures the lake approach, which is the flight's visual highlight.

During takeoff from Lambert St Louis International (STL), sit on the Right side for the best views. Right side offers views of the Mississippi River as it curves through St. Louis and the Gateway Arch area during initial climb. The river's distinctive meanders and the confluence with the Missouri River are clearly visible from 5,000–10,000 feet. Notable sights include: Mississippi River and Gateway Arch area, Missouri River confluence, St. Louis urban grid, Illinois floodplain to the east.

When landing at City Centre (YTZ), sit on the Left side for the best views. Left side provides excellent views of Lake Ontario's shoreline and Toronto's waterfront during descent into City Centre Airport. The lake's blue expanse and the Toronto Islands are striking visual features on approach from the southwest. Notable sights include: Lake Ontario, Toronto Islands, Toronto waterfront and downtown skyline, Niagara Escarpment ridge to the north.

The flight from Lambert St Louis International (STL) to City Centre (YTZ) takes Approximately 3 hours 15 minutes.

After crossing Ohio, the flight passes over the flat agricultural landscape of northwestern Ohio and southern Michigan. Lake Erie's southern shore may be visible to the north (left side) depending on exact routing. As the flight approaches Michigan and enters Canadian airspace, the terrain remains largely flat with scattered lakes and forests. The Niagara Escarpment becomes visible on approach to Toronto, marking the transition to the Great Lakes region. No major mountain ranges or dramatic terrain features are visible along this route—the corridor is characterized by low-relief farmland and water bodies.