Over 2.8 million passengers travelled through Dublin Airport last month.
This makes it the busiest October in the airport's history.
The number of passengers flying to and from continental Europe increased by 8%, while passengers to and from the UK grew by 4%.
Transatlantic traffic to North America increased by 17% - with almost 390,000 passengers taking this route last month.
The number of passengers travelling to other destinations in the Middle East, Africa and the Asia Pacific regions also grew by 19%.
And more than 9,600 passengers travelled on domestic routes.
The airport has welcomed almost 27 million passengers in the first 10 months of the year.