25.5 million fewer passengers travelled through Dublin Airport last year as traffic levels declined to 1994 levels.
DAA figures show just 7.4 million passengers travelled through the airport in 2020 due to the impact of the COVID-19 pandemic.
More than half of all those travelled in January and February.
Between March and the end of December, passenger numbers fell by 89% to 3.3 million.
In 2019, Dublin Airport had flights to more than 190 destinations in 42 countries operated by almost 50 airlines. In April 2020, Dublin Airport had flights to just 22 destinations in 11 countries operated by seven airlines.
Challenging
"Aviation was one of the sectors of the Irish economy that was hardest hit by COVID-19, and this is reflected in the passenger numbers for last year,” said Dublin Airport Managing Director Vincent Harrison.
"It was a hugely challenging year for Dublin Airport and for the entire Irish aviation sector, as the reduction in air travel and the introduction of travel restrictions in most markets had a very significant impact on passenger numbers during the year."
