The two men say the refusal contravenes council's Code of Meeting Practice.
"My democratic right to speak on a subject of my choice has been denied," said Mr Owens, who said the decision had been relayed to him on Thursday morning by Dale Allen, council's acting director of corporate business.
Paul Owens and Barry Lee both said they had applied more than one week before the meeting, as required.
Mr Owens said he wanted to speak about the dismissal of former assistant general manager and director of corporate business Kyme Lavelle.
Mr Lee said he wanted to speak on the topic of the quality of the information given to councillors which influenced their decision to award a contract for advertising at the airport.
Mr Lee, who regularly attends council meetings, has already been twice refused permission to speak on the topic of the airport advertising contract.