Sit on the Left side of the plane for the best views on flights from Denver to Mexico City. The left side wins overall. At takeoff you get the spectacular unobstructed view of the entire Colorado Front Range and Rocky Mountain wall. Through New Mexico and Chihuahua the left side tracks closer to the Sierra Madre Occidental highlands. The right side is better for the volcanic approach into MEX, but the Rockies departure view is the most dramatic single moment of the flight and tips the balance left.

During takeoff from Denver International (DEN), sit on the Left side for the best views. DEN typically departs southbound on runway 17L/17R or uses east-west runways. On a southbound departure toward Mexico City, the left (east) side gives you a clear look back at the Front Range and Rocky Mountains as you climb out over the plains. The entire wall of the Rockies from Longs Peak down through Pikes Peak is visible on the left as the aircraft banks south. Notable sights include: Front Range of the Rockies (Longs Peak, Mount Evans, Pikes Peak), Denver city grid below, the high plains stretching east, and the distinctive white tent roof of DEN terminal briefly visible below.

When landing at Licenciado Benito Juarez International (MEX), sit on the Right side for the best views. Mexico City's Licenciado Benito Juarez airport sits in the eastern part of the city. Aircraft typically approach from the north or northeast on runway 05R/23L orientation. On approach from the north, the right (west) side gives you the best view over the historic city center, Chapultepec Park, and the surrounding Valley of Mexico ringed by volcanoes. Popocatépetl and Iztaccíhuatl are visible to the southeast on the right side during descent. Notable sights include: Popocatépetl and Iztaccíhuatl volcanoes to the southeast, the Valley of Mexico urban sprawl, Texcoco lakebed (dry, visible as pale flat terrain east of the city), and the Sierra Madre Oriental ridgelines to the north.

The flight from Denver International (DEN) to Licenciado Benito Juarez International (MEX) takes Approximately 3 hours 30 minutes to 4 hours.

The flight crosses southern Colorado and New Mexico, passing near Albuquerque and the Rio Grande valley. Over northern Mexico the route crosses the Chihuahuan Desert and the high plateau of the Mexican Altiplano. The Sierra Madre Occidental runs along the left (west) and the Sierra Madre Oriental along the right (east). The city of Chihuahua is visible below mid-flight. Approaching Mexico City the terrain rises into the Trans-Mexican Volcanic Belt, with the volcanoes Popocatépetl and Iztaccíhuatl becoming visible on descent.