What Italy's Halved Air Traffic Capacity Means for Travelers on Friday

Air travelers in Italy faced delays and cancellations on Friday after the country's air traffic control authority, ENAV, restricted the number of flights it could handle because of a data transmission problem. According to DW, ENAV said it was operating at 50% of total air traffic capacity.

Shorter-distance flights are the most likely to be interrupted, while ENAV said it was giving priority to getting as many departures off the ground as possible, including intercontinental services.

What it means for passengers at Italian airports

The practical effect is a smaller number of flights moving through Italian airspace than the schedule calls for. DW reported that major airports in cities such as Rome and Milan warned travelers to expect likely disruptions. Some flights may be delayed, and others may be canceled.

The operator of Rome's airports, ADR, said delays and cancellations may occur. It advised passengers who are unsure about their trip to contact their airline. Milan's airports company, SEA, issued a similar notice.

Because ENAV said it was protecting departures, including long-haul ones, passengers on intercontinental flights may be less affected than those on short hops. DW reported that shorter-distance services were more likely to be cut or delayed. ENAV did not describe which specific routes were affected.

What ENAV says went wrong

ENAV said it first identified the problem overnight. The fault was in the data transmission network the air traffic control system relies on. The authority said it was forced to introduce restrictions at about 6 a.m. local time (0400 GMT) as the number of scheduled flights began to rise through the morning.

In a statement quoted by DW, ENAV said it was using all available resources to limit disruption and restore full operations as soon as possible. It said safety remained the company's top priority at all times and that the reduced capacity was meant to ensure maximum safety.

Cyberattack ruled out, according to ENAV

ENAV said it had ruled out foul play as the cause. The authority specifically excluded a cyberattack and said the disturbance was not the result of “malicious acts.” It described the issue as anomalies on the data transmission network. ENAV did not give further technical detail about what caused the fault.

Why it matters for anyone flying to, from or within Italy

Air traffic control capacity limits how many aircraft can safely take off, land and cross the airspace at the same time. When the system works at half its usual volume, the effects can spread beyond one airport. Flights scheduled for Friday, including those touching Rome and Milan, are exposed to delays or cancellations. That includes passengers connecting from other countries.

The statements from ADR and SEA show that airports are leaving the handling of individual disruptions to the airlines. Passengers are being told to contact their carrier rather than rely on airport desks alone for rebooking and updates.

What is known and what to watch

ENAV said it was working to restore full operations as soon as possible. No timeline for a return to normal capacity was given in the reporting from DW. Travelers with plans in Italy are likely to depend on updates from ENAV, airport operators and their airlines as the situation develops.

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Around Prague, based on reporting by DW