From February, the low-cost carrier will operate a return flight from Sydney or Brisbane to the South Korean capital every day as it launches a service departing Sydney on Mondays and returning on Tuesdays. The flights will add an extra 30,000 seats to the route per year.
The investment will include renovations and the construction of new facilities to accommodate the helicopter and crew, which will arrive from 2025.
The disruption follows Airservices Australia, which oversees air traffic control, switching the country’s biggest airport off parallel runway operations on Friday as winds peaked at 37km an hour.
Airservices Australia, which oversees air traffic control, said the decision to switch to single runway operations was not due to a lack of controllers but purely as a safety precaution.
Gate 3 at the airport will handle all Rex and Link Airways flights with fewer than 40 passengers, which do not require security screening, after federal funding for screening processes at regional airports ends on July 1. Qantas passengers will continue to use the screened departure gate.
The organisation that runs ATC said the shutdown, between 6 am and 1:30pm, was instead due to a “short-term” and “unplanned” leave of controllers and did not affect safety.