Flights into Queenstown Airport have been cancelled due to air traffic controller sickness.
Airways confirmed on Friday afternoon due to "unforeseen staff sickness", the Queenstown air traffic control tower would close 1.5 hours early on Friday, affecting flights from 7.30pm.
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About six flights have been rescheduled and airlines are making other arrangements for customers on these flights.
Those scheduled to fly in and out of Queenstown from 7.30pm Friday are advised to contact their airline for instructions, a statement said.
"Airways has worked through all options to provide cover as normal, and has worked with airlines to investigate whether service could be retained."
Airways says it was not able to fund a "suitable and safe" solution for the travelling public.
Newshub.