£31 Cheap flights to Ireland

Ireland is full of notable places to explore, many with significant historical value to the region and the world. Some of the most popular landmarks in Ireland are St. Stephen's Green, Aviva Stadium, Bord Gáis Energy Theatre, and INEC Killarney, among many more.

When visiting St. Stephen's Green in Dublin, the closest airport is Dublin Airport.

Of the 5 airlines that fly to Ireland, Ryanair, Aer Lingus and British Airways happen to be the most favoured based on our user data. Ryanair is the most popular among the three airlines, with 81% of users choosing them for their travels to Ireland.

87% of our momondo users travelling to Ireland in the past year chose to fly into Dublin in the past year, making it the most popular airport in Ireland. The Dublin airport serves the city of Dublin.

The cheapest flight to Ireland recently found on momondo was £15. If you’re unable to find a flight deal this cheap, keep in mind that anything less than £198 is considered a good price for flights to Ireland. £257 is the average cost to fly to Ireland, while £2,920 is the most expensive.

The best day to take a flight to Ireland is on Friday, followed by Saturday. Friday and Saturday tend to have the lowest flight prices to Ireland. If your travel dates are flexible, then try to avoid booking on a Monday, which is known for being the most expensive day of the week to fly to Ireland.

When travelling to Ireland, Knock Intl airport in Knock offers the cheapest overall flights with an average airfare of £15, while the second most affordable option is Cork airport with an average airfare of £15 for Cork.

Prices for flights to Ireland are updated daily.

As of November 2025, there are 25 operators available to choose from for flights to Ireland.

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Ireland.

The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.