Thessaloniki Airport (IATA: SKG, ICAO: LGTS), officially Thessaloniki Airport "Makedonia" (Greek: Κρατικός Αερολιμένας Θεσσαλονίκης «Μακεδονία», romanized: Kratikós Aeroliménas Thessaloníkis "Makedonía") and formerly Mikra Airport, is an international airport serving Thessaloniki, the second-largest city in Greece. It is located 13 km (8 mi) southeast of the city, in Thermi.

The airport is the third-largest airport in the country after Athens International Airport and Heraklion International Airport. It opened in 1930 and was the second-busiest airport in Greece in terms of flights served and the third-busiest in terms of passengers served in 2016, with over 6 million passengers. It is the main airport of Northern Greece and apart from the city of Thessaloniki it also serves the popular tourist destination of Chalkidiki and the surrounding cities of Macedonia. The Athens–Thessaloniki route is the tenth busiest in the EU with 1.8 million passengers. To cope with demand, a second terminal was constructed in conjunction with Fraport and formally opened in 2021.