Do you need to know more about prom? The location is still unknown, but seniors, make sure to attend your ACCESS class on Wed. March 20 to get your prom invitation. Prom tickets go on sale Mon. April 15 through Fri. April 20. They can be purchased before school, during lunches and after school for $45. After prom will be held in the Mountain Vista commons this year from 11:30 p.m. to 2:30 a.m. Tickets for after prom will go on sale the week of prom. They are $10 for juniors, $15 for guests and seniors are free.