US, UK Air Travel Disrupted by Heat, Tech Outages

Air travel disruptions are impacting both the U.S. and U.K. as extreme weather, technical failures, and staffing shortages cause widespread delays and cancellations. In the U.K., a technical blackout at National Air Traffic Services led to over 120 flight cancellations and affected more than half a million passengers, with authorities investigating potential cyber or foreign interference. U.S. airports, including Philadelphia, Detroit, and major New York City hubs, have been paralyzed by record heat and thunderstorms, prompting thousands of delays and FAA-issued ground stops. Newark Liberty International Airport is facing additional delays due to continued FAA staffing shortages, with reduced capacity expected through October. Experts warn that extreme heat not only increases thunderstorm activity but also impacts aircraft performance, sometimes requiring lighter loads and further delays. Travel authorities advise booking early flights, preparing for long waits, and staying updated as disruptions are expected to persist throughout the busy summer season.