Stewart Island Flights Stewart Island Flights has regular daily flights in twin engined Britten Norman Islander and Cessna aircraft between Invercargill Airport and Stewart Island. Stewart Island Flights have developed an efficient air link to Stewart Island to serve the needs of tourists by scheduling flights for the day tripper and those who elect to overnight on Stewart Island. Stewart Isalnd Flights provides an effective, quick, comfortable and relatively inexpensive method of travel to visit New Zealand's third largest Island. For Reservations and more information click here