The following year, he signed with La Liga powerhouse Real Madrid alongside teammate Santillana,[2] finishing his first season with 31 matches (28 starts) and six goals as the team won the national championship; he added three in only four appearances in the UEFA Cup, but they were eliminated in the second round.

[3] Safe for two seasons, Aguilar was regularly used during his spell, winning five leagues and two Copa del Rey – including the double in the 1974–75 campaign – and appearing in 190 competitive games.

[2] In the summer of 1979 he joined Sporting de Gijón, playing regularly but only managing to score on six occasions during his spell.

[4] Aguilar retired from football in June 1983 at the age of 34, after two years with another club in Madrid, second-tier Rayo Vallecano (12 goals from 36 appearances in his first).

[2] He made his debut on 24 November 1971 in a UEFA Euro 1972 qualifier against Cyprus in Granada, replacing Real Madrid teammate Amancio Amaro at half-time and scoring the fifth goal in an eventual 7–0 rout.