You can secure cheap flight tickets to Ireland almost all year round, except during major festivals and events. Your travel expenses can become less when you book cheap Ireland tickets during the shoulder or quieter months. If you don’t mind traveling in winter then this is the time when cheapest airfares to Ireland can be found as the prices are at the lowest. However, do remember that seasonal hotels, restaurants and attractions are usually closed from early or mid-November till mid-March or Easter.