Is the flight to Amsterdam turbulent?
Cruise is smooth most of the way, but the crossing passes through the North Atlantic jet stream, where clear-air turbulence is most likely in winter. Schiphol sits on the windy North Sea coast, so the approach can be gusty when Atlantic low-pressure systems move through.
When is the smoothest time to fly to Amsterdam?
May through September has the weakest jet stream and the fewest Atlantic storm systems. Winter brings a stronger jet and frequent windy approaches into Schiphol.
Why is there turbulence over the Atlantic?
The North Atlantic jet stream — a fast river of air at cruise altitude — creates wind shear at its edges that can jolt an aircraft without warning (clear-air turbulence, or CAT). It is strongest in winter and on the eastbound US→Europe leg, which rides the jet. Pilots change altitude to find smoother air, but CAT is invisible on radar, so it is the main reason to keep your belt on.
Where should I sit on a flight to Amsterdam?
Over the wing, near the aircraft's center of gravity, gives the steadiest ride. Keep your seatbelt fastened even when the sign is off — clear-air turbulence over the Atlantic can appear suddenly. On overnight flights the smoothest air is usually found by belting over the blanket and staying buckled while you sleep.