At its regular meeting with the First Minister to discuss public sector issues, the union stressed its concerns about proposals by Highland and islands Airports Limited (HIAL) to locate all air traffic operations for the airports at Stornoway, Wick, Sumburgh, Kirkwall, Dundee and Benbecula at Inverness and operate the airports remotely.
"We really value these meetings with the First Minister, they are invariably positive and often lead to progress on a number of issues," said Prospect's national Secretary for Scotland and Ireland, Richard Hardy.
"We welcomed the First Minister's ongoing commitment to public sector pay being a journey, with 2018 pay representing only a first step.
"Considering how the Westminster government treats its civil servants, it is refreshing and welcome to meet a politician who recognises both their value – and the value their unions bring.
"Our meeting today wasn't about reaching any conclusions about HIAL or pay, but we welcome the First Minister's engagement and her commitment to investigate the issues we raised."