Dublin Airport's Terminal 2, a state-of-the-art facility built to handle up to 15 million passengers a year, is the main operating location for Aer Lingus. The terminal, which has a U.S. pre-clearance area where travelers can finish U.S. immigration and customs processes prior to departure, is a major hub for transatlantic flights. The Aer Lingus Lounge, which provides free Wi-Fi, drinks, and cozy seats, is one of the facilities available to travelers. https://airlineterminalservice.com/aer-lingus-airlines/aer-lingus-airlines-dub-terminal-dublin-airport/