R21 993 Cheap flights to South Island

You can find flights to South Island from 6 airlines. If you’re unsure which to fly with, consider booking your flight with Qantas Airways, Emirates or Singapore Airlines as these are the most popular among our users. Qantas Airways is the most favoured with 64% of momondo travellers booking flights with this airline.

Sunday is the best day of the week to fly to South Island based on flight prices. Monday is another affordable option. If you are looking to save money on flights to South Island, then try to avoid flying out on a Saturday since this is when prices are at their highest.

Prices for flights to South Island are updated daily.

As of December 2025, there are 7 operators available to choose from for flights to South Island.

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 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.