Athens, the capital of Greece is well connected to major international cities. The International Airport of Athens, Eleftherios Venizelos, was inaugurated in March 2001 and was built to cater to the needs of a modern world. It is located 23 miles northeast of the city. It has 157 check-in counters and two runways that are 2.5 miles each. The airport can accommodate close to 600 flights a day. It has conference facilities, a post office, a hotel, courier service, banks, currency exchanges, ATMs and many stores and restaurants.

There are 5 international airports in Greece. They are situated in the major cities of the country namely, Athens, Corfu (Ionian), Heraklio (in Crete), Kos (Dodecanese) and Thesaloniki (near the region of Halkidiki). Some Greek islands are not directly accessible by flights. The best way to travel to these Islands is by organizing for a cab transfer from the Athens airport. The airfares to Greece between June and September and during holidays are comparatively more expensive. The weekend flights are also expensive. Of recent, many charter flights have begun operating to and from Greece. Most charter flights operate during summer.

Olympic Airways is the national airline of Greece. It operates daily flights from New York City and Boston to Athens. The approximate flight time from Athens to Los Angeles is 15 hours and from Athens to New York, 13 hours; Most European airlines connect North American cities with Greece via major European cities. Direct flights also operate from major European cities to Macedonia International Airport in Thesaloniki, Northern Greece, as well as to Corfu (Kerkira), Grete and Rhodes.

American and Canadian citizens entering Greece for a period of less than 3 months require a valid passport. There is no need to get a visa, though. Passport and visa requirements vary for tourists of different nationalities, and should be checked well in advance of the trip.