It's always a good idea to get a head start on graduation invitations, just in case there is a shipping delay or the company is slammed with orders. On average, you should expect it to take between 1-2 weeks for your graduation invitations to be printed and shipped to you. That doesn't account for the time it takes for you to compile your invitations and mail them to guests, so giving yourself about a month of leeway will ensure your invitations arrive in a timely manner.