Just over 2.3 million passengers passed through Dublin Airport in September, which was a 14% increase on the same period last year.
The growth in passenger numbers made last month the busiest September in Dublin Airport's 75 year history.
Passenger numbers to and from continental Europe increased by 14%, with just over 1.2 million passengers travelling to European destinations during the month.
About 750,000 passengers travelled to UK destinations in September, which was a 14% increase on the same month last year.
Transatlantic traffic to North America increased by 16% in September, with almost 275,000 passengers travelling on this route sector last month.
About 68,000 passengers travelled to the Middle East and North Africa, which was 14% more than during last September.
The number of passengers taking domestic flights increased by 21%, with 8,000 people travelling on domestic routes last month.
Overall passenger numbers are up 15% so far this year, as almost 19.2 million passengers have travelled through Dublin Airport in the nine months to the end of September.
More than 2.5 million extra passengers have been welcomed at Dublin Airport this year, with strong growth across all major sectors of the market.