Authorities landed the flight at the base in Djibouti, about 1,000 miles (1,600 kilometers) from South Sudan, more than two weeks ago after U.S. District Judge Brian E. Murphy in Boston found the Trump administration had violated his order by swiftly sending eight migrants from countries including Cuba and Vietnam to the east African nation.

Government lawyers said a federal judge in Boston had overstepped his authority by requiring hearings before deportations to countries other than the migrants’ own.