$2,439 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 $171/pp. The absolute cheapest flight to Northern Ireland is $70/pp

99% of momondo users visit Belfast more often than any other city in Northern Ireland. When travelling to Belfast, typically the most convenient airport to fly into is Belfast Intl Airport.

Northern Ireland typically has a temperature range from 5 °C(January) to 16 °C(July). Those looking to avoid rain and/or snow while visiting Northern Ireland should plan their trip in April, April, or February, as these months are relatively less likely to have precipitation.

Prices for flights to Northern Ireland are refreshed on a daily basis.

As of May 2026, there is 1 operator available to choose from for flights to Northern Ireland.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Northern Ireland.

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.