What are the options for checking in with Aer Lingus?

Aer Lingus offers multiple convenient options for checking in. Firstly, passengers can opt for online check-in, accessible from 30 hours up to 2 hours prior to departure. This option allows travelers to select seats, print boarding passes or receive them electronically. Alternatively, passengers can check in at the airport using self-service kiosks or dedicated check-in desks, available for both regular and premium customers. Additionally, mobile check-in is available through Aer Lingus' app, facilitating a hassle-free process with boarding passes on smartphones. Lastly, for certain destinations, customers can avail of US Customs and Border Protection pre-clearance at selected airports, which essentially allows for immigration and customs procedures to be conducted in advance, streamlining the arrival process. Aer Lingus ensures these varied check-in options cater to passengers' convenience and travel preferences.