Air New Zealand is suspending its services between Auckland and Seoul as a result of the fall in demand due to coronavirus.
Flights stop on 8 March and will resume at the end of June.
The airline says customers with affected flights will be contacted directly with alternative travel options within the coming weeks.
Air NZ said on Monday that its total capacity to Asia will reduce by 17 percent for the months of February through until June.
There will also be a reduction of 3 percent on trans-Tasman capacity from March through until May.
The airline has said it estimates the cost of coronavirus to the airline's earnings for the 2020 financial year, could be up to $75 million.