Aer Lingus has said that it carried 941,000 passengers in June, a fall of 8.6% compared with the same month last year.
Long-haul passenger numbers fell by 15.6% compared with June 2009, while short-haul numbers were down by 7.8%.
The load factor, or percentage of seats filled, improved by 0.8 points to 82.1%, as Aer Lingus cut capacity by 12.8% over the year. The load factor on longer routes improved by seven points to 87.2%, as Aer Lingus cut flights and routes by more than 25%, but the figure for short-haul routes fell 2.3 points to 79.7% in June.
For the first six months of the year, passenger numbers are down 10% from a year earlier at 4.6 million, while the load factor improved by 1.5 points to 75.5%.