| 31 Aug 18 | K. Trapp Kevin Trapp |  Paris Saint-Germain PSG | → |  Eintracht FrankfurtSGE | Loan |
| 31 Aug 18 | K. Trapp Kevin Trapp | Paris Saint-Germain PSG | → | Eintracht FrankfurtSGE | Loan |
| 20 Aug 18 | F. Kostic Filip Kostic |  Hamburg SVHSV | → | Eintracht FrankfurtSGE | Loan |
| 27 Jul 18 | O. Chico Geraldes Oliveira Chico Geraldes |  Sporting CPSCP | → | Eintracht FrankfurtSGE | Loan |
| 27 Jul 18 | F. Geraldes Francisco Geraldes | Sporting CPSCP | → | Eintracht FrankfurtSGE | Loan |
| 25 Jul 18 | Allan |  LiverpoolLIV | → | Eintracht FrankfurtSGE | Loan |
| 25 Jul 18 | Allan | LiverpoolLIV | → | Eintracht FrankfurtSGE | Loan |
| 23 Jul 18 | M. Besuschkow Max Besuschkow | Eintracht FrankfurtSGE | → | USXUnion SGUnion SG | Loan |
| 12 Jul 18 | G. Paciência Gonçalo Paciência |  FC PortoPOR | → | Eintracht FrankfurtSGE | Undisclosed |
| 05 Jul 18 | K. Boateng Kevin-Prince Boateng | Eintracht FrankfurtSGE | → |  SassuoloSAS | Undisclosed |
| 05 Jul 18 | O. Ndicka Obite Ndicka |  AJ AuxerreAUX | → | Eintracht FrankfurtSGE | Undisclosed |
| 05 Jul 18 | L. Torró Lucas Torró |  OsasunaOSA | → | Eintracht FrankfurtSGE | Undisclosed |
| 05 Jul 18 | K. Boateng Kevin-Prince Boateng | Eintracht FrankfurtSGE | → | SassuoloSAS | Undisclosed |
| 01 Jul 18 | C. Salcedo Carlos Salcedo |  GuadalajaraGDL | → | Eintracht FrankfurtSGE | Undisclosed |
| 01 Jul 18 | M. Wolf Marius Wolf | Eintracht FrankfurtSGE | → |  Borussia DortmundDOR | 5000000 |
| 01 Jul 18 | R. Dadachov Renat Dadachov | Eintracht FrankfurtSGE | → |  EstorilEST | Undisclosed |
| 01 Jul 18 | F. Ronnow Frederik Ronnow |  BrøndbyBRO | → | Eintracht FrankfurtSGE | Undisclosed |
| 01 Jul 18 | C. Salcedo Carlos Salcedo | GuadalajaraGDL | → | Eintracht FrankfurtSGE | Undisclosed |
| 01 Jul 18 | L. Bätge Leon Bätge | Eintracht FrankfurtSGE | → | WKXWurzburger KickersWurzburger Kickers | Free |
| 01 Jul 18 | L. Hradecky Lukas Hradecky | Eintracht FrankfurtSGE | → |  Bayer LeverkusenLEV | Free |
| 01 Jul 18 | N. Müller Nicolai Müller | Hamburg SVHSV | → | Eintracht FrankfurtSGE | Free |
| 19 Jun 18 | F. Wiedwald Felix Wiedwald |  Leeds UnitedLEE | → | Eintracht FrankfurtSGE | Undisclosed |
| 19 Jun 18 | F. Wiedwald Felix Wiedwald | Leeds UnitedLEE | → | Eintracht FrankfurtSGE | Undisclosed |
| 31 Jan 18 | M. Besuschkow Max Besuschkow | Eintracht FrankfurtSGE | → |  Holstein KielHOL | Loan |
| 01 Jan 18 | A. Ordóñez Anderson Ordóñez | Eintracht FrankfurtSGE | → |  Liga de QuitoLDU | Loan |