$639 Cheap flights to Northern Ireland

Flights to Northern Ireland vary based on month, airline, when you book, where you are departing from and many more variables, but on average momondo users can expect to spend about $104/pp. The absolute cheapest flight to Northern Ireland is $20/pp

Belfast is about 98% more popular to visit than any other city in Northern Ireland, according to momondo users. When visiting Belfast, it is recommended to fly into Belfast Intl Airport, where you can typically get the cheapest prices and the most convenient travel options into the city.

For the quickest drive from an arrival airport to Giant's Causeway, fly into Belfast Intl Airport or Belfast City Airport, which are closest to the area.

Many visitors who travel to Northern Ireland find themselves making a stop at popular landmarks such as Giant's Causeway, SSE Arena, and Titanic Belfast.

The temperatures in Northern Ireland range from 41 °F to 60.8 °F depending on the time of year. The warmest month in Northern Ireland is July, and the coldest month in Northern Ireland is January. Those looking for a drier month during their visit should travel during the months of April, April, or February, when rain is least likely compared to the rest of the year.

British Airways, American Airlines and Delta are the top three most popular airlines that fly to Northern Ireland according to our data. British Airways is the first choice among our users, with 88% of people opting to fly with this airline when traveling to Northern Ireland. Keep in mind that there are 3 different airlines that fly to Northern Ireland on a routine basis, so you have a few additional options to choose from.

Prices for flights to Northern Ireland were last updated today.

The number of operators available for flights to Northern Ireland is 9 as of March 2026.

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 Northern Ireland.

The necessary travel and health documents for your Northern Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.