The is no airport in Epidaurus. The closest airport is located in Athens, the capital of Greece. The airport of Athens operates domestic flights from most Greek airports and also operates international flights.
Daily buses connect Athens to Epidaurus, either direct or via Nafplion. To get the bus to Epidaurus, visitors have to go to Kifissos KTEL Bus Station in Athens. Another option is to drive there, as many car rental agencies have their base in the airport of Athens.