Osasuna sealed on Monday his promotion to the league with three games to go until the end of the season after Granada beat Albacete 1-0.
The Navarrese team, which dropped from the first division in 2017, leads the Spanish second division with 78 points in 39 games and is guaranteed to finish between the top two, after the home defeat of Albacete, third in the competition, left it 10 points away.
Osasuna spent 14 seasons in the first division before descending in 2014. He returned to the top flight after winning the 2016 playoffs, returning at the end of the following campaign.
His best result in La Liga was a fourth-place finish in 2006. He reached the UEFA Cup semi-final in 2007 and finished runners-up in the Copa del Rey in 2005.
Grenada, in second place, are four points behind Osasuna and have a six-point lead over Albacete, one more victory being enough to ensure passage to the top flight after relegation to second place in 2017.