Passengers on short haul Aer Lingus flights will be charged for baggage when they check in at airports from today.
A fee of €8 will be levied on every item of luggage before departure.
However passengers will only have to pay €4 if they check in online in advance.
Aer Lingus said the new charges will facilitate quick and easy access through airports and ensure quicker turnaround times. Fares may also be reduced as a result.
A maximum baggage weight of up to 20kgs will be allowed and charged €8 at check-in.
However any extra weight above that threshold will be charged €8 per kg.
Passengers will still be allowed to carry hand luggage into the cabin as long it weighs less than 6kg.
Ryanair introduced check-in charges for baggage in March 2006.