Correa scored his first goal abroad on 17 January 2016 in a 1–2 loss at Carpi. In the following two matchdays, he scored back-to-back goals against Napoli (2–4 home loss) and Bologna (2–3 away loss), and finished the season with three goals as his side achieved a disappointing 15th place.
On 10 July 2016, Spanish La Liga side Sevilla reached an agreement with Sampdoria for the transfer of Correa for a rumoured €13 million fee. Presented by the club two days later, he made his debut for the club on 17 August, starting in a 0–3 away loss against Barcelona for the second leg of the 2016 Supercopa de España.
Correa made his debut in the main category of Spanish football on 20 August 2016, replacing compatriot Luciano Vietto in a 6–4 home win against Espanyol.