Prospect air traffic controllers at Highland and Islands Airports Limited (HIAL) have rejected the latest pay offer from the company.
No further strike action is planned at this time but action short of a strike continues.
David Avery, Prospect negotiations officer, said:
“Our members have voted to reject the latest pay offer from HIAL.
“We will now consult with members on how best to move towards a resolution of this dispute and will also meet with the company to try to find an acceptable way forward.”