Flights to London Reach Over 800 mph Due to Powerful Jet Stream Winds

Several flights from Washington to London arrived significantly early, benefiting from near-record jet stream winds over the Atlantic.

Multiple flights from the DC area to London exceeded 800 mph, arriving up to 45 minutes early.
The powerful jet stream winds, reaching speeds up to 265 mph, were the second-strongest recorded in DC-area history.
Despite exceeding the speed of sound, the planes did not break the sound barrier due to the nature of airspeed.
The unusual wind conditions were caused by a pronounced boundary between cold and warm air masses.
This phenomenon led to some of the highest recorded ground speeds for commercial flights.