"Isis is not happy, especially after Turkey made an agreement with Russia and Israel about two months ago as well as the Turkish Army's bombing of Isis targets."
Mr Saroz, 82, travels to Istanbul between June and September each year for business but has postponed this year's trip, partly on suspicion of a terrorist attack and partly due to his health.
"Next year when I travel, this problem (terrorism threat) may go away in Turkey but could move somewhere else. Isis is trying to kill Turkey's economy by targeting its tourism market," Mr Saroz said.
He said when he next travelled to Istanbul, he would avoid crowded areas.
One of the attackers blew himself up outside the terminal, while the other two detonated explosives inside. Footage shows one attacker moving through the building; he is shot by police and remains on the ground for about 20 seconds before blowing himself up.