By 1929, the airline flew regular flights connecting Budapest with Belgrade and Vienna.

The main fleet before 1939 were eight triple-engined German-built Junkers Ju 52/3m aircraft HA-JUA to HA-JUG, one airplane HA-DUR[1] for the government, delivered between 1933 and 1939.

Five somewhat comparable triple-engined Italian-built Savoia Marchetti S.M.75 aircraft HA-SMA to HA-SME, delivered in 1938–39.

The airline operated flights between Budapest, Kraków, Warsaw, Prague, Belgrade and Vienna.

The MALÉRT fleet consisted of the following aircraft: This article relating to a European airline is a stub.