How much does it cost to check a bag on Aer Lingus flights?

The cost of checking a bag on Aer Lingus flights varies depending on a few factors. For flights within Europe and the UK, the cost starts from €15 per bag when pre-booked online, or €40 at the airport. For transatlantic flights, the cost is $45 when pre-booked online, or $55 at the airport. These prices apply to the first checked bag only, with additional bags incurring higher fees. The weight and size restrictions of checked bags also apply, with excess weight or oversized items subject to extra charges. To avoid additional costs, passengers are encouraged to adhere to the baggage guidelines provided by Aer Lingus.