Sec. of the Treasury Steve Mnuchin traveled by military jet a total of seven times. The total cost to taxpayers for these flights was $800,000 according to the New York Times.
"Treasury Secretary Steven Mnuchin has flown on military aircraft seven times since March at a cost of more than $800,000, including a $15,000 round-trip flight to New York to meet with President Trump at Trump Tower, according to the Treasury Department’s Office of Inspector General. Mr. Mnuchin has made nine requests for military aircraft since assuming his position earlier this year and has taken seven flights. A request to use a military plane for his European honeymoon with his wife, Louise Linton, in August was withdrawn. A ninth flight is scheduled for later this month, when Mr. Mnuchin is expected to travel to the Middle East."