 On 11 January 2013, de las Cuevas was loaned to CA Osasuna thus returning to the top flight.The move was made permanent in late May after the Navarrese managed to retain their status, with a €1.2 million fee being paid in equal shares to Atlético and Sporting.On 29 January 2015, de las Cuevas terminated his contract that ran until June 2016, and moved abroad for the first time in his career at the age of 28, signing with Spezia Calcio in Italy.