Sit on the Left side of the plane for the best views on flights from Long Beach to Denver. Left side wins both takeoff and landing. During the cruise portion heading northeast, the left side also tracks closer to the Colorado Rockies as the flight crosses the San Bernardino Mountains, Mojave Desert, and then the southern Rockies, giving better views of the mountain terrain throughout.

During takeoff from Long Beach (LGB), sit on the Left side for the best views. Departing Long Beach, aircraft typically use runway 30 (heading northwest) or 12 (heading southeast). On a northeast-bound flight to Denver, a left turn out puts the LA Basin, downtown Los Angeles skyline, and the Santa Monica Mountains on the left side. The Pacific Ocean and Catalina Island are also visible to the left during initial climb. Notable sights include: Catalina Island, downtown Los Angeles skyline, Santa Monica Mountains, Long Beach Harbor and breakwater.

When landing at Denver International (DEN), sit on the Left side for the best views. Denver International sits on the plains east of the Rockies. Aircraft typically land on runways oriented north-south or northwest-southeast. On approach from the southwest, the left side offers a sustained view of the entire Front Range — from Pikes Peak in the south to Longs Peak in the north — as the aircraft descends over the plains. Notable sights include: Front Range of the Rocky Mountains, Pikes Peak, Denver city skyline, Rocky Mountain Arsenal National Wildlife Refuge.

The flight from Long Beach (LGB) to Denver International (DEN) takes Approximately 2 hours 15 minutes.

San Bernardino Mountains and San Gabriel Mountains shortly after departure, then the Mojave Desert's flat expanse, followed by the Colorado River crossing near Needles, the Grand Canyon visible to the north on clear days, the Kaibab Plateau, then the Colorado Rockies including the San Juan Mountains and the Sawatch Range before descending toward Denver