Aviasales.com compares prices for airline tickets to São Tomé and Príncipe with 728 airlines from all over the world. We do not sell airline tickets ourselves, but you can use our service to find the lowest prices and special offers with no additional fees or mark-ups. Find the cheapest flights to São Tomé and Príncipe with Aviasales.com. The population of São Tomé and Príncipe is 175,000. The official currency is Std (STD).