Wagons, vans and unroadworthy cars dumped at Brisbane Airport are likely to be sold to scrapyards within the next two weeks, unless their owners come forward.

Seventeen vehicles have been left at the airport for more than 90 days, and all of which were listed as abandoned vehicles in a public notice on Wednesday.

Brisbane Airport Corporation is preparing to sell or scrap 17 vehicles abandoned at the airport. Credit:Glenn Hunt

A Brisbane Airport Corporation spokeswoman said there were myriad scenarios as to why vehicles ended up dumped in the airport car park, including the owner being delayed overseas or interstate due to illness or death, but sometimes the vehicles were simply stolen or dumped.

"There are also cases of vehicles under finance that are left inside the car park," she said.