Over the weekend, three international flights were propelled to near-record speeds exceeding 800 miles per hour due to powerful 265 mile-per-hour winds, marking speeds far surpassing the typical 500 to 600 miles per hour of commercial flights. This phenomenon was made possible by the jet stream, a narrow band of wind that flows west to east and has been strengthened by the impact of a changing climate. The incredible wind speeds allowed Virgin Atlantic Flight 22, United Airlines Flight 64, and American Airlines Flight 120 to arrive at their destinations early, with the latter reaching a striking speed of 840 miles per hour.

Experts have noted that while the faster jet stream can provide a tailwind for eastbound flights, it may also lead to bumpier rides and slower travel times for planes heading west. Additionally, flight planning can become more complex due to the need for additional fuel when flying against strong headwinds. The effects of climate change are expected to bring about more turbulence in air travel, potentially leading to widespread delays and cancellations within the industry.

Although the planes traveled at speeds faster than the speed of sound, they did not break the sound barrier as their own speeds minus the wind assistance were not greater than 767 miles per hour. The increased frequency and intensity of weather events, such as wildfires and thunderstorms, are anticipated to further impact air travel, requiring airlines to adjust departure schedules and plan alternative routes. Airlines must also consider how extreme temperatures can affect flight operations, necessitating more time and distance for takeoffs in high heat conditions.