A California man was busted after he jokingly told an airline employee at JFK that he was hauling a bomb in his luggage, cops said.

Youval Geringer-Ganor, 56, of Beverly Hills, was in Terminal 4 at Kennedy Airport about 4 p.m. on Jan. 12, when he asked a Delta employee to hold his bag, said sources.

“There is a small bomb in there,” he told her, said sources.