| Cheap Flights: Austin to Milan $471-$503 r/t [February-April] â British Airways / Finnair / Delta / United British Airways, Finnair, Delta, United and various other airlines have round-trip flights from Austin (AUS) to Milan (MXP) for $471-$503 with a connection. Flights February to April. Extended weekends available. Click for more details and booking links Cheap Flights: Austin to Milan $471-$503 r/t [February-April] â British Airways / Finnair / Delta / United . | 