| Giocatore | Trasferimento | Contratto | Data |
| Antonio Luna |
Levante UD svincolato |
Prestito | 29-09-2020 |
| Youssouf Koné |
Olymp. Lione Elche CF |
Prestito | 29-09-2020 |
| Álex Martínez |
Granada CF svincolato |
- | 29-09-2020 |
| Aleksandar Jovanovic |
SD Huesca Apol. Limassol |
? | 29-09-2020 |
| Àlex Carbonell |
Valencia CF FC Luzern |
Prestito | 29-09-2020 |
| Kevin-Prince Boateng |
Fiorentina Monza |
gratuito | 28-09-2020 |
| Saúl García |
Alavés Sporting Gijón |
Prestito | 28-09-2020 |
| Filip Manojlovic |
Getafe CF UD Sanse |
1,25 mln € | 28-09-2020 |
| Rubén Pardo |
G. Bordeaux CD Leganés |
gratuito | 28-09-2020 |
| Sergi Palencia |
Saint-Étienne CD Leganés |
- | 28-09-2020 |
| Juan Soriano |
Siviglia FC Málaga CF |
- | 28-09-2020 |
| Marlos Moreno |
Manchester City Lommel SK |
Prestito | 27-09-2020 |
| Antoñito |
Real Valladolid Panathinaikos |
gratuito | 26-09-2020 |
| Ronald Gbizie |
SD Huesca CD Numancia |
Prestito | 26-09-2020 |
| Luis Suárez |
FC Barcellona Atlético Madrid |
gratuito | 25-09-2020 |
| Daniele Verde |
AEK Atene Spezia |
Prestito | 25-09-2020 |
| Gil Dias |
Monaco Famalicão |
Prestito | 25-09-2020 |
| Diego Godín |
Inter Cagliari |
gratuito | 24-09-2020 |
| Javi Ontiveros |
Villarreal CF SD Huesca |
7,50 mln € | 24-09-2020 |
| Jawad El Yamiq |
Genoa Real Valladolid |
? | 24-09-2020 |
| Diego Llorente |
Real Sociedad Leeds |
20,00 mln € | 24-09-2020 |
| Dani Sotres |
Cádice CF R. Majadahonda |
Prestito | 24-09-2020 |
| Santiago Arias |
Atlético Madrid Leverkusen |
11,00 mln € | 24-09-2020 |
| Luismi |
Real Valladolid Elche CF |
Prestito | 24-09-2020 |
| Nélson Semedo |
FC Barcellona Wolverhampton |
30,50 mln € | 23-09-2020 |
| Dani Romera |
Cádice CF Ponferradina |
gratuito | 22-09-2020 |
| Jorge Cuenca |
Villarreal CF UD Almería |
Prestito | 22-09-2020 |
| Miguel Cifuentes |
Málaga CF Elche CF |
Prestito | 22-09-2020 |
| Álvaro Morata |
Atlético Madrid Juventus |
62,00 mln € | 22-09-2020 |
| Johan Mojica |
Girona FC Atalanta |
Prestito | 22-09-2020 |