FrameCunningham has picked up the Highlands and Islands Airports Ltd advertising account.
The agency won the business from Inverness-based Michael Fraser Associates following a competitive pitch.
It is rumoured that the account was won after a final two-way pitch against the Union.
The appointment of the Glasgow-based agency is the first time that Highlands and Islands Airports have appointed a specialist advertising agency and FrameCunningham will now be responsible for a wide-reaching campaign that will include TV and press.
It is not known if Michael Fraser Associates, a Corporate Communications and Design Consultancy, will be retained to work on other areas of the business.