Nicosia is the capital. Regular buses go there from any airport and big city. If you are planning to save money, then public transport in Cyprus will definitely not disappoint you. These are mostly comfortable, large, air-conditioned buses, spacious and comfortable. Another thing is a matter of time. As convenient and accessible as public transport is, buses do not run every 2 minutes. Sometimes you need to wait 20-30 minutes for it. And the travel time, as a rule, is twice as long as if you were traveling by car.
The most convenient way to get from the airport is by taxi. The distance from Larnaca to Nicosia is about 50 kilometers. By bus, it will take at least 1.5 hours. A taxi to Nicosia will take you 40-50 minutes, while delivering you straight to your hotel or other destination.