What is the carry-on baggage allowance on Aer Lingus flights?

The carry-on baggage allowance on Aer Lingus flights varies depending on the class of travel. For Economy class passengers, including guests with Saver fares, one carry-on bag is permitted with maximum dimensions of 55cm x 40cm x 24cm and a weight limit of 10kg. Additionally, one small personal item such as a handbag or laptop bag is allowed. Passengers in Business class or Flex fare holders can bring two carry-on bags with the same size and weight restrictions, along with one personal item. It's important to note that all carry-on bags must fit in the overhead compartments or under the seat in front of you. Any bag exceeding the given limits may need to be checked into the hold, subject to space availability.