Winter has strong winds and blizzards, and summer's hot heat can create unstable air, thunderstorms, and tropical storms. That means flying during the holidays often means more turbulence than other times of the year. So if possible, avoid flying between December and February or June and August for a smoother flight.

Statistics show that it is equally safe to fly in both winter and summer in 2026. While each season presents different challenges—winter brings de-icing requirements, snow, and low visibility, while summer brings intense thunderstorms and turbulence—modern commercial aviation is designed to handle all of these extremes. In fact, winter flying is often smoother because cold air is denser and more stable, whereas hot summer air creates more "convective" activity, leading to "bumpy" flights. De-icing technology and sophisticated weather-tracking radars mean that flights are rarely "unsafe" due to weather; instead, they are simply delayed or cancelled if conditions exceed the aircraft's strict safety parameters. In 2026, flying remains the safest form of long-distance travel regardless of the season, with a fatality risk so low that a person would need to fly every day for over 15,000 years to experience a fatal accident.