Vatican City
The counrtry has no airport, Due to limited space. Visitors can go the nearest airport then travel to Vatican City by train or bus.
Monaco
Monaco is a small country with a high population density, Known for it's wealth but Monaco has no airport.
Liechtenstein
Liechtenstein does have a heliport in the southern town of Balzers,Smallest European country, has no airport of it's own.
San Marino
San Marino,being a small country, lacks the space and infrastructure for a airport, Marino is dependent on the nearby airport, has no airport.
Andorra
Travelers can reach Andorra by flying to nearby airports in Spain and France,Located in the Pyreness mountain, Andorra has no airport of it's own.