"We will win the elections, and the Ukrainians will reopen it the next morning," he said in response to a question from Sputnik.
Hungarians went to the polls on Sunday to elect all members of the national parliament.
Hungary has been at odds with Ukraine over the transit of Russian oil through the Druzhba pipeline. The government in Kiev halted the flow of oil to Hungary and Slovakia in January, in what Hungary called an act of blackmail.