Dundee Airport is set to close to routine traffic from this Sunday (March 29).
Operator HIAL has decided to close all its airport in order to prioritise vital air links, including emergency flights.
The company, which runs hubs across northern Scotland, says it is working with Transport Scotland and Loganair to agree a skeleton schedule that will ensure airports continue to provide lifeline services, particularly those affecting the islands - including NHS passenger transfers, the Royal Mail and the oil and gas industry.
Inglis Lyon, HIAL's managing director, said: "Our airports are unique in that their core role is to provide lifeline services for our communities in the Highlands and Islands. They are essential to the continued delivery of medical and other critical supplies, the transport of key workers and also enable emergency flights for island communities.
"Now more than ever there is a need to safeguard those vital services.
"I appreciate this crisis is unknown territory for all of us and at this time we do not know how long these essential measures will remain in place.
"We could not maintain these services for our communities without the extraordinary team spirit and commitment displayed by our staff right across the HIAL group and I am indebted to them for their continued flexibility and dedication during a very difficult time for us all."
Michael Matheson, Cabinet Secretary for Transport, Infrastructure and Connectivity, said:
"Our aviation sector is facing an unprecedented challenge in the face of the coronavirus outbreak, so the Scottish Government is working with industry partners to ensure our lifeline air links continue to operate for the remote communities that depend on them.
"These air routes are crucial for the transport of supplies and key workers, as well as providing a vital link when emergency transport to the mainland is required.
"I also wish to thank all the HIAL staff for their efforts during this difficult time."