Passenger volumes to and from continental Europe fell by 80%, as more than 374,000 people travelled to and from European destinations last month.
UK traffic declined by 89% compared to last August, as 105,000 passengers travelled to and from Britain during the month.
Passenger volumes to and from North America decreased by 95%, as just over than 25,400 passengers travelled on transatlantic routes during August.
Other international passenger traffic to the Middle East fell by 93%, with just over 8,000 passengers travelling last month. The number of passengers on domestic routes fell by 69%, as just over 3,800 people took domestic flights in August.
Just over 6.2 million passengers have travelled through Dublin Airport between January and August, a 72% decrease compared to the same period last year.
The impact of COVID-19 has resulted in 16.1 million fewer passengers using Dublin Airport so far this year.