The best time to visit Ireland is during the shoulder season (May, September and October). During these months, you'll find less crowds along with cheaper flight and accommodation prices. These months experience mild temperatures, plenty of dry spells and there's a packed festival calendar.
Is there a cheapest month to fly? If you're looking for a bargain month to travel, February is your best bet. Flights in January closely follow February for being most affordable. At the other end of the spectrum, December and July are the first and second most expensive months to travel, on average.
Tuesdays and Wednesdays are the cheapest days to fly domestically. The cheapest days to depart if you're flying within the U.S. are midweek — generally Tuesday or Wednesday. For economy tickets, Tuesdays are about 24% lower than peak prices on Sundays, which translates to savings of about $85 per ticket.
At a country level, the cost of living in Ireland, including housing, is only 10% lower than the cost of living in the USA. However, the United States has many cities that are cheaper to live in than similar cities in Ireland.
Most trans-Atlantic carriers that fly to Dublin, the capital, also fly to Shannon on the western side of the island. Dublin's bigger size often means it has cheaper fares.
Domestic airline prices are on the decline in 2023, finally retreating after spiking just a year ago. International fares are still high. After soaring in 2022, prices for domestic airline tickets are on the descent.