The airport saw a spike in business with the daily return of Delta flights to New York-JFK and the summertime rise in frequency to destinations in Europe and the United Kingdom.

Shannon has expanded summer frequencies to nine of its European destinations, including Alicante, Faro, Lanzarote, and Tenerife. Shannon now flies to 33 locations in Europe, the UK, and the US.

By year's end, Shannon Airport is expected to have handled two million passengers, according to Mary Considine, CEO of The Shannon Airport Group.

"As we build towards this, we remain committed to delivering a world-class experience for our customers, who are travelling from every corner of the country to fly Shannon," she continued.

"Despite being in the height of the busy summer travel season, our passengers are still enjoying the famous seamless, hassle-free experience of using Shannon, where customers can get from the car park, through check-in and security in just a matter of minutes," she stated.