M. R. Štefánik Airport (Slovak: Letisko M. R. Štefánika) (IATA: BTS, ICAO: LZIB), also called – especially in English – Bratislava Airport (Slovak: Letisko Bratislava), located approximately 9 km (5.6 mi) northeast of the city center of Bratislava, spanning over the area of three municipalities (Bratislava-Ružinov, Bratislava-Vrakuňa and Ivanka pri Dunaji). It is the main international airport of Slovakia. Shortly after the independence of Slovakia in 1993, it was named after general Milan Rastislav Štefánik (1880–1919), whose aircraft crashed near Bratislava in 1919. The airport is owned and run by Letisko M. R. Štefánika – Airport Bratislava, a.s. (BTS). As of September 2014 the company is fully owned by the Slovak Republic via the Ministry of Transport, Construction and Regional Development.

Bratislava is a base for the Slovak Government Flying Service as well as Ryanair, AirExplore, and Smartwings Slovakia. During a brief period in 2011, the airport was also a secondary hub for Czech Airlines. Two maintenance companies, Austrian Technik Bratislava and East Air Company are also based at the airport. Air Livery has one painting bay for aircraft at the airport.