There are 3 airlines that fly directly from Madrid to Buenos Aires: Aerolineas Argentinas, Air Europa, Iberia if you are departing from Madrid.
Most airlines that have direct connections are departing from Madrid Barajas Internationale Lufthavn.
Most airlines arrive to Ministro Pistarini Internationale Lufthavn.
Most flights depart on fredag, torsdag.
Direct flights to Buenos Aires
No direct flights to Buenos Aires