Sit on the Right side of the plane for the best views on flights from Perth to London. The right side wins overall because the Perth departure delivers genuinely spectacular coastal and city views including Rottnest Island, while the landing approach views of London are good on the left but more familiar. On the long overwater leg across the Indian Ocean and Middle East, neither side has a consistent advantage, but right-side passengers may catch better views of the Arabian Peninsula coast and Red Sea during daylight hours depending on routing.

During takeoff from Perth International (PER), sit on the Right side for the best views. Perth departures on runway 21 (heading southwest) or 24 (heading northwest) typically give the right side a view back over the Swan River estuary, the Perth CBD skyline, and the Indian Ocean coastline stretching north toward Scarborough and Trigg. The city sits to the east of the airport, so a northbound climbout on runway 03 would flip this, but the dominant departure toward the northwest puts the city and coast on the right. Notable sights include: Swan River estuary and Fremantle Harbour, Perth CBD skyline, Indian Ocean coastline north toward Scarborough Beach, Rottnest Island visible offshore to the northwest.

When landing at Heathrow (LHR), sit on the Left side for the best views. Heathrow's dominant landing runways are 27L and 27R (heading west), meaning the approach comes in from the east over London. The left side on this westbound approach looks south over central London, giving clear views of the Thames, the City of London, and landmarks along the river. The right side faces north toward the M25 corridor and suburban Middlesex with far less visual interest. Notable sights include: River Thames winding through central London, City of London and Canary Wharf tower clusters, Windsor Castle and Windsor Great Park to the west, M25 motorway orbital visible as a broad grey arc.

The flight from Perth International (PER) to Heathrow (LHR) takes Approximately 17 to 18 hours nonstop (Qantas operates this route direct).

Indian Ocean crossing for the first several hours with no land visible; the Maldives atolls may appear as tiny white rings far below if routing passes nearby; the Arabian Peninsula coast and the Persian Gulf with its distinctive shallow turquoise water and oil platform clusters; Iran and the Zagros Mountains as a corrugated brown ridge system; Turkey and the Bosphorus strait if routing goes that way; the Balkans and Alps as a snow-capped mountain chain; France's agricultural patchwork of the Paris Basin before crossing the Channel into southern England