FWIW: This was from a post three years ago, but the link no longer is working: http://talk.collegeconfidential.com/harvard-university/1754977-stipulations-for-visitas-financial-aid.html
If you’ve been accepted SCEA, I would call Admissions to find out how to book your flight through the Egencia travel agency. If you’re waiting on an RD acceptance, I would wait until notices come out and then call Admissions.