United Airlines Holdings Inc. predicted first-quarter profit well ahead of Wall Street’s estimates as the carrier capitalizes on unusually strong demand for premium and international travel during the winter months.

United Airlines on Tuesday forecast a stronger-than-expected profit in the current quarter, after its earnings topped Wall Street estimates in the fourth quarter on robust travel demand and improved pricing power.

Winter travel ranging from popular ski destinations in the U.S. to southern Europe are some of the reasons why United’s profits surged.