Flying over the Atlantic can be turbulent, primarily because the route crosses the North Atlantic Jet Stream, a high-altitude "river of air" that moves from west to east. Turbulence often occurs when a plane enters or exits this fast-moving air (wind shear) or when it encounters "Clear Air Turbulence" (CAT) caused by temperature differentials. In 2026, scientific data suggests that Atlantic turbulence is becoming slightly more frequent and intense due to climate change, which is strengthening the temperature gradients that fuel the jet stream. However, modern aircraft are designed to withstand forces far greater than any turbulence can provide. Pilots also use sophisticated real-time "turbulence maps" and Pireps (Pilot Reports) to adjust their altitude and path to find the smoothest air. While the "bumps" can be unnerving and might lead to the suspension of cabin service, they are rarely a safety risk to the plane itself. To stay safe, the most important rule is to keep your seatbelt fastened whenever you are seated, even if the sign is off, as CAT can occur without any visual warning on the radar.