Sit on the Left side of the plane for the best views on flights from Billund to London. Left side wins both ends of the flight. During the cruise over the North Sea and then England, the left side also faces south toward the English coastline as you cross into UK airspace over East Anglia, giving slightly more visual interest than the open North Sea on the right.

During takeoff from Billund (BLL), sit on the Left side for the best views. Billund's runway 09/27 means westbound departures toward London typically involve a left turn southwestward. The left side picks up the flat Jutland heathland and the Vejle Fjord inlet cutting inland from the east coast of Jutland, which is a distinctive geographic feature visible during climb-out. Notable sights include: Vejle Fjord to the east, flat Jutland heathland patchwork, the town of Vejle itself, agricultural grid of central Jutland.

When landing at Heathrow (LHR), sit on the Left side for the best views. Heathrow predominantly uses easterly approaches on runways 27L/27R, meaning aircraft arrive from the west tracking east. The left side on final approach faces south, giving views over Windsor Castle and Windsor Great Park, the Thames bend at Staines, and the western London suburbs. The right side faces north over Slough and less distinctive terrain. Notable sights include: Windsor Castle and Windsor Great Park, the Thames at Staines reservoir complex, M25 motorway arc, western London suburban sprawl.

The flight from Billund (BLL) to Heathrow (LHR) takes Approximately 1 hour 45 minutes to 2 hours.

The flight tracks southwest from Jutland across the southern North Sea, crossing the Dutch or Belgian coast near the Frisian Islands or the Rhine-Maas delta, then over the English Channel or entering UK airspace over East Anglia. The North Sea crossing is largely featureless open water at cruise altitude, but the Dutch coast with its distinctive polders and the Thames Estuary on descent are notable geographic markers.