Aer Lingus baggage allowance policy allows you to bring one small cabin bag and one personal item, without incurring the extra charges. The baggage allowances are subject to certain terms & conditions. If your carry-on baggage size exceeds the maximum limit, you will be responsible for additional costs. You may purchase the extra luggage when you make a reservation with Aer Lingus.
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Aer Lingus Baggage Allowance and Fee

As per the Aer Lingus baggage allowance, one carry-on bag and one checked bag item are allowed. You have to pay extra if your checked baggage weight is 20 kg.