Preparing for your flight to Geneva? Switzerland is already expensive enough so don't get stuck with high roaming costs. The best way to avoid this is buying a local sim card on arrival in Switzerland. Therefore I wrote this guide for buying a prepaid sim card for tourists at Geneva Airport. I will tell you where to buy one, up to date prices as per July 2022, give you the latest info about EU roaming with Swiss sim cards and even provide you with info about e-sim cards for Switzerland.