Sit on the Right side of the plane for the best views on flights from London to Buenos Aires. Right side wins both ends of the flight. At takeoff you get the Thames and London's urban geography; on landing you get the Rio de la Plata and Buenos Aires city grid. The flight tracks south over the Bay of Biscay, the Atlantic, and the Brazilian coast, so neither side has a decisive advantage mid-flight, but the right side edges it at both airports.

During takeoff from Heathrow (LHR), sit on the Right side for the best views. Heathrow typically departs westbound on runways 27L/27R, so a right-side seat looks north over the Thames Valley and central London as the aircraft banks south. You get a clear view of the Thames snaking eastward toward the city, with the urban sprawl of west London laid out below. Notable sights include: River Thames curving east toward central London, Windsor Castle and Windsor Great Park to the southwest, the M25 motorway ring visible as a broad arc, Wembley Stadium arch visible to the northeast on clear days.

When landing at Ezeiza Ministro Pistarini (EZE), sit on the Right side for the best views. Ezeiza typically uses runways oriented roughly 11/29, with arrivals often from the east or northeast. A right-side seat on approach from the northeast gives views over the southern suburbs of Buenos Aires, the wide brown Rio de la Plata estuary, and the flat Pampas stretching to the horizon. The city's grid and the river delta are the dominant visual features. Notable sights include: Rio de la Plata estuary (wide brown water visible from great distance), Buenos Aires city grid and port district, Parana River delta wetlands to the north, flat Pampas grasslands extending west.

The flight from Heathrow (LHR) to Ezeiza Ministro Pistarini (EZE) takes Approximately 13 to 14 hours.

The route crosses the Bay of Biscay, then tracks south over the open South Atlantic well west of the African coast. It passes near the equator over open ocean, then crosses the Brazilian coast somewhere near Recife or Natal, traverses the Brazilian interior and cerrado, crosses into Argentina over the flat Pampas, and descends into Ezeiza from the northeast. The Amazon basin and its river systems may be visible below cloud cover on the Brazilian overland section.