Ray Treacy Travel is to close at the end of this month.
The decision has been prompted by the retirement of its owner, former Republic of Ireland soccer international Ray Treacy.
In a statement, Mr Treacy said all booking that have been made with the company will be honoured in full.
He said his decision to cease trading on 30 October had been taken after 30 wonderful years in the travel business.
The company is perhaps best known for organising trips to away football matches involving Irish teams.