Private First Class Billy MacLeod Respectful Return Act - Amends the John Warner National Defense Authorization Act for Fiscal Year 2007 to provide that requirements for the military transportation to the United States of the remains of a member of the Armed Forces who dies in a combat theater of operations shall also apply to the remains of any member found after the date of enactment of this Act in any theater of U.S. combat operations since April 6, 1917, who died while participating in such operations.