In August 2009, Albentosa was loaned to Caravaca CF.[4] He returned to Elche in January of the following year, however, and appeared in a further two matches in the Segunda División until the end of the campaign.
On 21 July 2013, Albentosa signed with SD Eibar, recently promoted to the second division.[7] He scored his first professional goal on 2 March of the following year, the last in a 3–0 home victory over Sporting de Gijón.[8]
Albentosa made 33 appearances in 2013–14, helping the Armeros achieve promotion to La Liga for the first time ever.[9] He made his debut in the competition on 24 August 2014, starting in a 1–0 home defeat of Real Sociedad.[10] On 19 September, through a header, he scored his first goal in the top flight, his being the second in a 2–0 win at Elche CF.[11]
On 16 January 2015, Albentosa signed for Derby County on a 2+1⁄2-year deal, after the English club paid the €600,000 of his buyout clause.[12] He made his competitive debut for his new team eight days later, playing the first half of a 2–0 home victory against Chesterfield in the fourth round of the FA Cup.[13]
Albentosa returned to Spain and its top division in the summer of 2015, after agreeing to a one-year loan deal with Málaga CF.[14] On 9 July 2016, he signed a permanent four-year contract with fellow league club Deportivo de La Coruña.[15]
On 31 August 2018, after suffering relegation, Albentosa was loaned to Gimnàstic de Tarragona in the second division, for one year.[16] He was recalled the following January,[17] terminating his contract shortly after.[18]
On 12 January 2022, Albentosa signed with Danish Superliga club Vejle Boldklub.[26] On July 7, 2024, Vejle confirmed that Albentosa would not continue at the club as his contract expired on June 30, 2024.[27]
^Armand, F. (27 June 2011). "El Murcia deja escapar a Raúl Albentosa" [Murcia let Raúl Albentosa leave] (in Spanish). Info Deporte Murcia. Archived from the original on 13 September 2013. Retrieved 13 September 2013.
^Petkov, Georgi (1 September 2019). "ЦСКА и Левски не се победиха – 2:2" [CSKA and Levski did not win – 2:2] (in Bulgarian). Topsport. Retrieved 1 July 2020.