Sit on the Left side of the plane for the best views on flights from Denver to Paris. Left side wins both ends of the flight. At departure you get the full Rocky Mountain Front Range panorama, and at arrival you get the Paris basin with the Seine and city landmarks. Over the Atlantic the views are similar on both sides, but the bookend scenery strongly favors the left.

During takeoff from Denver International (DEN), sit on the Left side for the best views. DEN typically departs westbound on runway 16R/34L or eastbound on 8/26. On a transatlantic routing heading northeast, a left-side seat gives you the full Front Range of the Rocky Mountains — the entire stretch from Pikes Peak in the south to Longs Peak in the north is visible as you climb out over the Denver metro. The city grid of Denver itself also passes beneath the left wing. Notable sights include: Front Range Rocky Mountains (Pikes Peak to Longs Peak), Denver city grid and downtown skyline, Cherry Creek Reservoir, the flat expanse of the Colorado High Plains receding east.

When landing at Charles De Gaulle (CDG), sit on the Left side for the best views. CDG typically lands on easterly runways (09L/09R) or westerly (27L/27R) depending on wind. On approach from the west or northwest, a left-side seat looks south over the Paris basin, giving you the Seine river bends, the Eiffel Tower area, and the dense Haussmann street pattern of central Paris. The right side looks north toward less distinctive suburban and agricultural terrain. Notable sights include: Seine River and its distinctive meanders through Paris, Eiffel Tower and Champ de Mars district, La Défense business district tower cluster west of Paris, Bois de Boulogne forest.

The flight from Denver International (DEN) to Charles De Gaulle (CDG) takes Approximately 9 to 10 hours.

After climbing out over the Great Plains, the route tracks northeast over the Great Lakes region (Lake Michigan and Lake Erie may be visible depending on exact routing), then crosses southern Canada over Quebec and Labrador. The route then crosses the North Atlantic, often passing south of Greenland's ice sheet which may be visible as a white mass on the northern horizon. Approaching Europe, the flight crosses Ireland and southern England before descending into France. The English Channel crossing is brief but the patchwork agricultural fields of northern France are distinctive on descent.