Below mentioned are five independent states in the world that do not have airports, but there is at least one heliport, and the list is all small European countries - Andorra, Liechtenstein, Monaco, San Marino, and Vatican City.
Although there is no airport in Andorra, there are three private helipads or helicopter landing ports. The country has a hospital helipad. Construction of the national helipad was underway but is currently stalled. The nearest airport in the country is located in Spain.
There is no airport in this European country. There is only one helipad in the southern city of Baltis The nearest international airports are located in Switzerland and Germany.
Although there is no airport, there is a heliport in Fontville The nearest airport is in Nice, France
There is no airport in San Marino. But there is a heliport in Borgo Maggiore. And Torresia has a small airfield with a runway length of 2,230 feet. The nearest airport is in Italy.
The size of Vatican City suggests that it is impossible to have an airport here. Its area is only 17 square miles. However, there is a helipad at its western end It is used by heads of state and government officials. The nearest airport is in Rome, Italy.