Passenger numbers at Dublin Airport exceeded 1.7 million in October, a 10% increase on the same month last year.
Passenger volumes to and from continental Europe increased by 13% with more than 910,000 people travelling to European destinations during the month.
UK traffic recorded a 4% increase with more than 605,000 passengers travelling to and from Britain in October.
Transatlantic volumes were up by 10% with more than 142,000 passengers travelling to and from North America during the month.
Other international passenger traffic, which includes flights to the Middle East, increased by 79% with just under 39,000 passengers travelling this route sector in October.
Passenger numbers on domestic services increased by 8% with more than 5,000 people travelling on domestic routes during October.
Just under 16.5 million passengers travelled through Dublin Airport from January to October this year, an increase of 1% on the first 10 months of last year.