If you are a frequent flyer, you’ve likely experienced turbulence at least once during your travels. Turbulence can result from various geographical and meteorological factors, including mountains, weather patterns, and jet streams.

It can also be caused by sudden weather changes, and some routes are notorious for frequent turbulence. Pilots are trained to navigate safely through or around these turbulent areas, and modern aircraft are designed to handle such conditions. Here are eight locations where experiencing turbulence during a flight is common.

-1). Santiago, Chile to Santa Cruz, Bolivia
This route crosses the Andes Mountains, which are known for causing significant turbulence due to the mountainous terrain and varying air currents. The weather systems over the Andes can also contribute to a bumpy ride.

-2). Almaty, Kazakhstan to Bishkek, Kyrgyzstan
This short route crosses the Tian Shan mountain range. The mountainous terrain can cause turbulence, particularly during shifts in weather patterns.

-3). Lanzhou to Chengdu, China
The flight route crosses part of the Tibetan Plateau and Sichuan Basin, which can cause turbulence due to the high elevation and rugged terrain. Seasonal monsoons and weather changes add to the turbulence.

[i]-4).Milan, Italy to Geneva, Switzerland
This route crosses the Alps, a significant mountain range in Europe. The terrain-induced turbulence, combined with weather systems in the region, can make for a turbulent flight experience.

-5). Osaka, Japan to Sendai, Japan
This route is influenced by the weather patterns over the Sea of Japan and the mountainous regions of Honshu. Seasonal typhoons and strong winds contribute to turbulence.[/i]

-6). Lanzhou to Xianyang, China
This route traverses the Loess Plateau, which can lead to turbulence due to the region’s unique topography and air currents. Weather changes in central China also play a role.

-7). Milan, Italy to Zurich, Switzerland
Similar to the Milan-Geneva route, this flight crosses the Alps, causing turbulence due to the mountainous terrain and regional weather patterns.

-8 ). Xianyang to Chongqing, China
This route flies over a varied landscape including the Qinling Mountains and the Sichuan Basin. The geographical variations, coupled with central China’s weather patterns, contribute to turbulence.