Low-cost carrier PLAY said it carried 74,620 passengers in December 2022, more than four times the number for the same month in 2021.
It said the load factor for the month was 82.8% compared to a 79.1% load factor in November, percentages it claimed put it above all other Scandinavian airlines.
"Routes to and from London, Paris, and the Canary Islands were very popular with a load factor of around 90 percent," the carrier said, with the routes helping it attain a 25% market share in Iceland - a percentage it could increase in mid-2023 when a route to Toronto-Hamilton opens.
"We are incredibly proud of our achievement in winning such a considerable share of our home market in a highly competitive environment and believe that this shows the clear need for a low-cost airline in the market", the carrier said.