My son quickly solved our flight dilemma – where we could not buy a ticket online with a credit card for a Star Peru flight from Lima to Cusco – by going to the Star Peru office in Lima and buying the ticket with his debit card. Of course this option isn’t available to those of us who aren’t in Lima but it was nice to know that he could actually get the dang thing. Meanwhile we’re contemplating getting a Visa card since we’re hearing that Visa is more widely used in Peru than Master Card. I don’t know why. For example, I cannot use my Master Card to buy tickets online to Machu Picchu. After finally figuring out how to use the government website I discovered during the third or fourth click that they only take Visa.