October 1st for spring programs (Please note that for Columbia-administered programs, the clearance deadline is the same date as the application deadline).
March 15th for fall and year programs
May 1st for summer programs
Program Application Deadlines:
Program application deadlines will vary by program. You must meet both campus and program deadlines so be sure to apply early, especially for spring programs in Europe which tend to fill quickly. Some program application deadlines are quite early, and can be up to a year in advance of the term you will be abroad.