Before the disruptions in Italy, authorities in other countries reported problems with air traffic control infrastructure. In the United States, a communications failure led to temporary ground stops at major airports, causing delays, diversions, and cancellations after a problem with a fiber-optic line affected the frequencies used by air traffic controllers.
In the United Kingdom too, technical failures in traffic management systems caused cancellations and delays at several airports, including Heathrow, while the return to normal operations was announced as difficult because of the accumulated delays. At the same time, in Scotland and northern England, a problem at the control center in Prestwick led to temporary restrictions and disruptions, with passengers advised to check information directly with the airlines.
In this context, warnings to travelers repeatedly focused on checking flight status and following updates from airlines and airports, amid technical incidents that can affect flight schedules across wide areas.