€1,215 Cheap flights to South Island

On average, it takes 2h 05m to fly from Ireland to South Island if you fly out of Dublin (the most popular airport in Ireland) and into Kastrup Copenhagen (the most popular airport in South Island). If you’re flying out of Cork and into Kastrup Copenhagen, then the flight time is around .

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

Prices for flights to South Island refresh daily.

As of September 2025, there is 1 operator available to choose from for flights to South Island.

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 South Island.

The travel and health documents required for your trip to South Island 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 South Island. We always recommend checking with your airline or a trusted third party such as IATA to get advice.