Sit on the Left side of the plane for the best views on flights from Chicago to Denver. The left side wins on both ends: Chicago's skyline and lakefront at departure, and a dramatic first look at the Rocky Mountains' Front Range on arrival into Denver.

During takeoff from Chicago Ohare International (ORD), sit on the Left side for the best views. Departing ORD to the west, the left side offers views back over Chicago's skyline and Lake Michigan shoreline before the plane turns westward. The right side mostly shows Chicago's flat western suburbs. Notable sights include: Chicago skyline (Willis Tower, Loop), Lake Michigan shoreline, O'Hare's surrounding grid suburbs.

When landing at Denver International (DEN), sit on the Left side for the best views. On approach to DEN from the east, the left side gives the best views of the Front Range of the Rocky Mountains rising abruptly from the plains just west of the city. The right side faces east toward flat, featureless prairie. Notable sights include: Front Range of the Rocky Mountains, Longs Peak area, Denver's urban grid, South Platte River valley.

The flight from Chicago Ohare International (ORD) to Denver International (DEN) takes 2h 30m.

Great Plains of Nebraska and eastern Colorado, including the Platte River valley, with mostly flat agricultural terrain until the Rockies appear near Denver