More than 40 bundles of advertising leaflets were dumped beside Aerodrome Road in Port Pirie last week.
The adverts were for a number of big-name businesses and could have caused major problems if not found and disposed properly.
The leaflets were found by the Airport Manager Steve Joyce who said the dates on them had expired over a month ago.
"It is disgusting, really," he said.
"Imagine if they were not tied up - they would have been all over the place.”
Nearby residents are furious about the littering and Mr Joyce said tyre tracks were left by the vehicle which will help Port Pirie Regional Council with their investigation.