Aer Lingus saw a 2% rise in passenger numbers in January.
Numbers flown increased to 651,000, although short-haul passengers dropped by 1% to 513,000.
The Irish airline saw long-haul passengers increase by 7.3% to 59,000 over January 2013.
The overall load factor was up by 1.9 percentage points to 66.5%.
The Aer Lingus Regional arm increased carryings by 21.5% to 79,000 from 65,000 in the month.