Health and Human Services Secretary Tom Price has taken at least 24 flights on private charter planes at taxpayers’ expense since early May, according to people with knowledge of his travel plans and a review of HHS documents.

The frequency of the trips underscores how private travel has become the norm — rather than the exception — for the Georgia Republican during his tenure atop the federal health agency, which began in February. The cost of the trips identified by POLITICO exceeds $300,000, according to a review of federal contracts and similar trip itineraries.

Price’s use of private jets represents a sharp departure from his two immediate predecessors, Sylvia Mathews Burwell and Kathleen Sebelius, who flew commercially in the continental United States. HHS officials have said Price uses private jets only when commercial travel is not feasible.