Sit on the Left side of the plane for the best views on flights from Keflavik to London. Left side wins at both ends of the flight. Over the ocean the views are similar on both sides, but the left side captures the Icelandic volcanic landscape on departure and the Thames valley and London approach on arrival, making it the clear choice for the most geographically interesting moments of the flight.

During takeoff from Keflavik Nas (KEF), sit on the Left side for the best views. Keflavik typically departs on runway 19 heading south or runway 28 heading west. On a southbound departure toward the UK, the left side faces east toward the Reykjanes Peninsula volcanic landscape and Reykjavik in the distance. You get a clear view of the geothermal fields, lava fields, and the capital city across Faxafloi Bay. Notable sights include: Reykjanes Peninsula lava fields, Reykjavik city and harbor, Faxafloi Bay, Keilir volcanic peak.

When landing at Heathrow (LHR), sit on the Left side for the best views. Heathrow predominantly uses easterly approaches on runways 27L/27R, meaning the aircraft tracks in from the west over Windsor and then the Thames. The left side on final approach looks south over Windsor Great Park, the Thames corridor, and central London landmarks spread across the horizon ahead and to the left. Notable sights include: Windsor Castle and Windsor Great Park, River Thames, central London skyline on the horizon, Wembley Stadium arch.

The flight from Keflavik Nas (KEF) to Heathrow (LHR) takes Approximately 2 hours 45 minutes to 3 hours.

The route tracks southeast from Iceland across the open North Atlantic, passing south of the Faroe Islands which may be faintly visible on clear days to the left. The flight then crosses the northern tip of Scotland or passes just west of it, where the Outer Hebrides and Scottish mainland coastline can appear on the left. Over northern England the Pennines are visible as a low ridge before descending into the Thames basin.