(Alliance News) - Ryanair Holdings PLC on Wednesday reported it carried more passengers in December compared to a year earlier.

The Dublin-based low-cost airline said its December traffic rose 21% to 11.5 million guests from 9.5 million in December 2021.

The load factor improved to 92% from 81% a year earlier.

On a rolling 12-month basis, passenger numbers more than doubled to 160.4 million guests from a year ago and load factor the load factor rose to 92%, from 81%.

The announcement came days after Ryanair cabin crews launched a three-day strike over the New Year holiday, grounding dozens of flights and hitting thousands of passengers. 

The industrial action came as the cost of living crisis spurs growing labour strife across Europe that has disrupted the festive period.

Charleroi airport Chief Executive Philippe Verdonck told AFP that the strike action would set to halt 30% of the airlines' flights through its Belgium hub. 

Overall, some 22,000 passengers were expected to be affected over the three days, he said. 

In early December, Ryanair said it carried 11.2 million passengers in November 2022, up 9.8% from 10.2 million a year earlier, and up 2.8% from 10.9 million in November 2019.

By Xindi Wei, Alliance News reporter

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