Sit on the Left side of the plane for the best views on flights from Phoenix to Denver. Left side wins both ends of the flight. Departing Phoenix you get the best of the Valley of the Sun and the Sonoran Desert mountain landmarks. En route the left side tracks closer to the Colorado Plateau features including the Painted Desert and San Juan Mountains in the distance. The landing approach to Denver on the left delivers the iconic Front Range panorama, which is genuinely one of the best mountain views from any commercial approach in the US.

During takeoff from Phoenix Sky Harbor International (PHX), sit on the Left side for the best views. PHX typically departs east on runway 26/8 or north on runway 7R/25L. Departing northeast toward Denver, the left (north) side gives you a clear view over downtown Phoenix, the grid of the Valley of the Sun, and the distinctive profile of South Mountain Park to the southwest. The left side also picks up Camelback Mountain and the McDowell Mountains as you climb out. Notable sights include: Camelback Mountain, South Mountain Park, McDowell Mountains, downtown Phoenix grid.

When landing at Denver International (DEN), sit on the Left side for the best views. DEN typically lands from the east or southeast on runways oriented northeast-southwest. Approaching from the south-southwest, the left (west) side delivers the full panorama of the Front Range — the Rocky Mountains stretching from Pikes Peak in the south to Longs Peak in the north — as the aircraft descends over the plains. This is one of the most dramatic mountain approach views in the continental US. Notable sights include: Front Range Rocky Mountains, Pikes Peak, Longs Peak, Denver city skyline.

The flight from Phoenix Sky Harbor International (PHX) to Denver International (DEN) takes Approximately 1 hour 45 minutes to 2 hours.

The flight crosses the Mogollon Rim and the Colorado Plateau in northern Arizona, then the Four Corners region with the San Juan Mountains visible to the northwest. Over southern Colorado the route passes over the high desert of the San Luis Valley with the Sangre de Cristo Mountains visible to the east and the San Juan Mountains to the west. The terrain rises steadily from desert scrub to high plains before the dramatic drop onto the Denver metro area.