когда приедете

when you arrive

→ когда
phrase Rare #44,175
when you arrive Used when addressing one person formally or multiple people. Приедете specifically suggests arriving by vehicle or other transport.
RU: Напишите мне, когда приедете домой.
EN: Write to me when you arrive home.

Когда приедете в Бостон, свяжитесь, пожалуйста, со мной.

When you arrive in Boston, please get in touch with me.