River Plate Born in
Teodelina,
Santa Fe, Buonanotte made his professional debut as a 17-year-old on 9 April 2006, in the 3–1 win against
Instituto. On 7 October 2007, only one week after his first game, he scored his first goal at senior level. Buonanotte was picked by coach
Daniel Passarella to start in the
derby against
Boca Juniors. River Plate won 2–0, with Buonanotte playing a key role in the victory. He was named by
World Soccer magazine as one of the '50 most exciting teenagers in the world game'. Buonanotte was part of the
2008 Apertura winning team.
Málaga On 21 January 2011, Buonanotte signed a five-year contract with
Málaga CF, but he was loaned to River Plate until July 2011. The reason he left Malaga was not about his appearances with his team but the 1.6 million dollars that River Plate gave for a loan for him. He scored his first goal for Málaga on 21 December 2011 in a 2–2 home draw against
Getafe CF in the
Copa del Rey (winning 3–2 on aggregate.) On 21 November 2012, he scored his careers first
Champions League goal, in a 2−2 away draw against
Zenit. Also he scored goals against Barcelona and Real Madrid.
Granada On 31 January 2013, Buonanotte signed a -year contract with
Granada. After moving to Granada, Buonanotte told Goal.com, he left Malaga in order to get playing time. He was previously linked with a move to Italian side
Palermo but opted for Granada. On 28 August 2014, after being left out of the first-team during the pre-season, Buonanotte was loaned to
C.F. Pachuca in a one-year deal. After playing in their pre-season in Mexico, Buonanotte signed on a six-month loan for
Quilmes AC on 30 January 2015.
AEK Athens In August 2015, Buonanotte signed a two-year contract with
AEK Athens. On the third matchday of the
2015–16 season he scored twice in a 3–1 home win against
PAS Giannina. On 22 November 2015, he scored his fifth league goal helping AEK win against
Panthrakios. On 2 December 2015, he scored two goals in his first appearance in the
Greek Cup in a 6–0 home win against
Panelefsiniakos. On 17 December, he again scored a brace in a 5–0 away win against
AEL in the Cup. He finished the year with 11 goals in 35 appearances in all competitions.
Universidad Católica On 19 July 2016, Buonanotte signed for
Universidad Católica. There, he won the
2016 Apertura, scoring 8 goals in 13 matches. Also winning the
2016 Clausura, and most recently
2018-
2019 Chilean Primera Division.
Sporting Cristal On 5 July 2022, Buonanotte joined Peruvian side
Sporting Cristal until December 2023.
Return to Chile In 2023, Buonanotte returned to Chile by signing with
Unión La Calera. The next season, he switched to
O'Higgins. In 2025, Buonanotte joined
Deportes Temuco in the
second level. ==International career==