FK Zeljeznicar 0-2 AIK Fotboll *
| 20.07.2017 | AIK Fotboll | 2-0 | FK Zeljeznicar | |
| 13.07.2017 | FK Zeljeznicar | 0-0 | AIK Fotboll | |
*Astra Giurgiu 3-1 Zira FK
| 20.07.2017 | Zira FK | 0-0 | Astra Giurgiu | |
| 13.07.2017 | Astra Giurgiu | 3-1 | Zira FK | |
AS Trenčín 1-3 Bnei Yehuda *
| 20.07.2017 | Bnei Yehuda | 2-0 | AS Trenčín | |
| 13.07.2017 | AS Trenčín | 1-1 | Bnei Yehuda | |
Beitar Jerusalem 1-5 Botev Plovdiv *
| 20.07.2017 | Botev Plovdiv | 4-0 | Beitar Jerusalem | |
| 13.07.2017 | Beitar Jerusalem | 1-1 | Botev Plovdiv | |
*Brøndby IF 3-2 VPS Vaasa
| 20.07.2017 | VPS Vaasa | 2-1 | Brøndby IF | |
| 13.07.2017 | Brøndby IF | 2-0 | VPS Vaasa | |
Cork City 0-2 AEK Larnaca *
| 20.07.2017 | AEK Larnaca | 1-0 | Cork City | |
| 13.07.2017 | Cork City | 0-1 | AEK Larnaca | |
*SCR Altach 4-1 Dinamo Brest
| 20.07.2017 | Dinamo Brest | 0-3 | SCR Altach | |
| 13.07.2017 | SCR Altach | 1-1 | Dinamo Brest | |
Rabotnicki Skopje 1-4 Dinamo Minsk *
| 20.07.2017 | Dinamo Minsk | 3-0 | Rabotnicki Skopje | |
| 13.07.2017 | Rabotnicki Skopje | 1-1 | Dinamo Minsk | |
Valur Reykjavik 3-5 Domžale *
| 20.07.2017 | Domžale | 3-2 | Valur Reykjavik | |
| 13.07.2017 | Valur Reykjavik | 1-2 | Domžale | |
Ferencvaros TC 3-7 FC Midtjylland *
| 20.07.2017 | FC Midtjylland | 3-1 | Ferencvaros TC | |
| 13.07.2017 | Ferencvaros TC | 2-4 | FC Midtjylland | |
Irtysh Pavlodar 1-3 FK Crvena Zvezda *
| 20.07.2017 | FK Crvena Zvezda | 2-0 | Irtysh Pavlodar | |
| 13.07.2017 | Irtysh Pavlodar | 1-1 | FK Crvena Zvezda | |
*Sturm Graz 3-1 FK Mladost
| 20.07.2017 | FK Mladost | 0-3 | Sturm Graz | |
| 13.07.2017 | Sturm Graz | 0-1 | FK Mladost | |
FK Liepaja 1-2 FK Suduva *
| 20.07.2017 | FK Suduva | 0-1 | FK Liepaja | |
| 13.07.2017 | FK Liepaja | 0-2 | FK Suduva | |
Norrköping 3-3 FK Trakai *
| 20.07.2017 | FK Trakai | 2-1/p.5-3 | Norrköping | |
| 13.07.2017 | Norrköping | 2-1 | FK Trakai | |
*Gabala FC 3-1 Jagiellonia
| 20.07.2017 | Jagiellonia | 0-2 | Gabala FC | |
| 13.07.2017 | Gabala FC | 1-1 | Jagiellonia | |
*Östersunds FK 3-1 Galatasaray SK
| 20.07.2017 | Galatasaray SK | 1-1 | Östersunds FK | |
| 13.07.2017 | Östersunds FK | 2-0 | Galatasaray SK | |
*Shkendija'79 4-2 HJK Helsinki
| 20.07.2017 | HJK Helsinki | 1-1 | Shkendija'79 | |
| 13.07.2017 | Shkendija'79 | 3-1 | HJK Helsinki | |
Kairat Almaty 1-3 Skenderbeu *
| 20.07.2017 | Skenderbeu | 2-0 | Kairat Almaty | |
| 13.07.2017 | Kairat Almaty | 1-1 | Skenderbeu | |
Keşla FK 2-4 CS Fola Esch *
| 20.07.2017 | CS Fola Esch | 4-1 | Keşla FK | |
| 12.07.2017 | Keşla FK | 1-0 | CS Fola Esch | |
*Maccabi Tel Aviv 5-1 KR Reykjavik
| 20.07.2017 | KR Reykjavik | 0-2 | Maccabi Tel Aviv | |
| 13.07.2017 | Maccabi Tel Aviv | 3-1 | KR Reykjavik | |
FK Haugesund 3-4 Lech Poznan *
| 20.07.2017 | Lech Poznan | 2-0 | FK Haugesund | |
| 13.07.2017 | FK Haugesund | 3-2 | Lech Poznan | |
*Hajduk Split 3-1 Levski Sofia
| 20.07.2017 | Levski Sofia | 1-2 | Hajduk Split | |
| 13.07.2017 | Hajduk Split | 1-0 | Levski Sofia | |
Slovan Bratislava 1-3 Lyngby BK *
| 20.07.2017 | Lyngby BK | 2-1 | Slovan Bratislava | |
| 13.07.2017 | Slovan Bratislava | 0-1 | Lyngby BK | |
Nomme Kalju 1-4 Videoton FC *
| 20.07.2017 | Videoton FC | 1-1 | Nomme Kalju | |
| 13.07.2017 | Nomme Kalju | 0-3 | Videoton FC | |
*Panionios GSS 5-2 ND Gorica
| 20.07.2017 | ND Gorica | 2-3 | Panionios GSS | |
| 13.07.2017 | Panionios GSS | 2-0 | ND Gorica | |
Progrès Niedercorn 1-3 AEL Limassol *
| 20.07.2017 | AEL Limassol | 2-1 | Progrès Niedercorn | |
| 13.07.2017 | Progrès Niedercorn | 0-1 | AEL Limassol | |
Shamrock Rovers 2-5 Mlada Boleslav *
| 20.07.2017 | Mlada Boleslav | 2-0 | Shamrock Rovers | |
| 13.07.2017 | Shamrock Rovers | 2-3 | Mlada Boleslav | |
*Aberdeen FC 3-1 Siroki Brijeg
| 20.07.2017 | Siroki Brijeg | 0-2 | Aberdeen FC | |
| 13.07.2017 | Aberdeen FC | 1-1 | Siroki Brijeg | |
*MFK Ruzomberok 2-1 SK Brann
| 20.07.2017 | SK Brann | 0-2 | MFK Ruzomberok | |
| 13.07.2017 | MFK Ruzomberok | 0-1 | SK Brann | |
Valletta FC 1-3 FC Utrecht *
| 20.07.2017 | FC Utrecht | 3-1 | Valletta FC | |
| 13.07.2017 | Valletta FC | 0-0 | FC Utrecht | |
*Apollon Limassol 5-1 Zaria Balti
| 20.07.2017 | Zaria Balti | 1-2 | Apollon Limassol | |
| 13.07.2017 | Apollon Limassol | 3-0 | Zaria Balti | |