More than 20 million people flew through Dublin Airport last year, a 6% increase on the number of people using the airport in 2012.

The Dublin Airport Authority said this marked the third successive year of growth for the airport, with newly announced routes anticipated to continue this trend into 2014.

According to the DAA there was particularly strong growth in transatlantic travel last year, which was 13% higher compared to 2012.

Traffic to the Middle East also grew by 13%, while the number of transfer passengers rose by 36% to almost 550,000.

The DAA said the positive figures for 2013 will see it repay €5.6 million in airport charges to 40 airlines through its Growth Incentive Scheme.

The scheme, established in 2011, offers a rebate on charges to airlines that increase passenger numbers during each year.