The main driving force across much of Spain and Portugal has resulted in dozens of flights being cancelled and damaged railway and road networks.

So far, about 96 flights departing from Portugal Airport have taken root, with the country's capital in Lisbon's worst airports being affected.

A total of 45 flights were cancelled from Spain, with Barcelona and Madrid airports having the greatest impact.

The cause of the power outage has not been determined, and although some power has been restored, the head of the Spanish grid said Monday afternoon that it could take "six to ten hours" to restore all power.

Although popular tourist destinations in the Balearic and Canary Islands were not severely affected, cities across the country were affected at noon during the Spanish period.

The power outage caused public transportation damage and the train was cancelled. The affected traffic lights have caused the Madrid mayor to ask residents to keep the road clear as tunnels on certain highways are closed.

Lisbon Airport canceled the most (29.6%) in Portugal on Monday night, according to airline analytics company Cirium. A total of 9 flights from the UK to Portugal also took root.

The BBC learned that Lisbon Airport restricts its flow rate – it does not actually allow aircraft to arrive, or there are delays to enter the plane and then crashes the plane into a tight airport operation system, which usually arrives within a strict time frame.

According to Cirium, Barcelona and Madrid constitute most of the cancellations of Spanish airports, but zero flights from the UK to Spain were abandoned.

Aviation investigator David Gleave told the BBC that any disruption to the airport's power supply would not affect air traffic control because "the battery will kick out for a second after a maximum, so the plane is safe."

"From then on, diesel-powered generators will keep the power running so that air traffic control can operate," he added.

He said it could be that the airports in Spain and Portugal have separate power supplies, "this will see large diesel generators emit when they feel there is no power in their usual grid supply."

Spanish Aviation Navigation Organization Enaire confirmed that backup generators have already meant that air traffic management operations continue to operate from its five control centers.

It added: “As appropriate regulations are being implemented to ensure the complete safety of operations.”

Spanish national airline Iberia confirmed on X that despite the widespread power outages, its systems "operate at 100% of the price".

"However, given the difficulties at several airports, we offer options for the flights we prepare today to arrange travel," it said.

Although some flights operate properly, these problems affect roads and public transportation, which can be a problem for travelers trying to reach the airport.

Spanish Transport Minister Oscar Puente said it is impossible for medium and long-distance trains to resume normal service on Monday.

He said the plan is to restore shorter commuting services immediately after power is restored. Work is also underway to save people trapped in stranded services.