School board members originally voted unanimously to keep the program at Broughton in October, but say they got hundreds of calls from parents of children who would be displaced to relieve overcrowding.
Wednesday's decision now means other students will be reassigned - some as far as 20 miles away.
The board now has the option of possibly moving the International Baccalaureate to another high school. All that was decided Wednesday was to gradually phase out the program at Broughton. No decision was made about another school.
Wake County has been struggle with the issue of overcrowding and school reassignment for months. Hundreds of parents and students have come to a series of public meetings to protest various proposals.
Keep it here for more on this developing story