Sit on the Left side of the plane for the best views on flights from Denver to Buenos Aires. The left side delivers the definitive Rocky Mountain panorama on departure — arguably the best mountain view available from any major US airport — and also captures the Andes cordillera during the long overland transit through South America. The right side wins at landing for the Rio de la Plata, but the sheer drama of the Front Range and Andes views on the left outweighs it across the full journey.

During takeoff from Denver International (DEN), sit on the Left side for the best views. DEN typically departs south or southeast on runways 17L/17R or 16L/16R, which puts the Rocky Mountains directly to the left (east-facing passengers look west). The entire Front Range including Longs Peak, Mount Evans, and Pikes Peak lines up along the left side during climb-out. This is one of the most dramatic urban-to-mountains views in North American aviation. Notable sights include: Front Range Rocky Mountains (Longs Peak, Mount Evans, Pikes Peak), Denver city grid and downtown skyline, Cherry Creek Reservoir, the distinctive white tent roof of DEN terminal receding below.

When landing at Ezeiza Ministro Pistarini (EZE), sit on the Right side for the best views. Ezeiza typically receives aircraft from the north or northeast, with approaches on runway 11 or landing heading east. On approach from the north, the right side faces north and east, giving views over the Rio de la Plata estuary and the Buenos Aires city grid. The estuary is enormous and unmistakable, and the dense urban fabric of greater Buenos Aires spreads across the right side on final approach. Notable sights include: Rio de la Plata estuary (one of the widest rivers in the world), Buenos Aires city grid and downtown Puerto Madero waterfront, Riachuelo river marking the southern city boundary, Pampas grasslands stretching to the west.

The flight from Denver International (DEN) to Ezeiza Ministro Pistarini (EZE) takes Approximately 12 to 13 hours.

After crossing the Gulf of Mexico or Caribbean depending on routing, the flight typically transits over the Amazon basin in Brazil — a vast flat green canopy with meandering river systems visible on clear days. Further south, the Mato Grosso plateau and the Pantanal wetlands may be visible as the route descends toward the Rio de la Plata basin. The Andes are generally to the west and not directly overflown on this routing, but on clear days the eastern Andean foothills may be visible on the left side over Bolivia and northwestern Argentina.