Jetradar compares prices for airline tickets to Sao Tome dan Principe 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 Sao Tome dan Principe with Jetradar. The population of Sao Tome dan Principe is 175,000. The official currency is São Tomé and Príncipe Dobra (STD).