Shamrock Rovers 1-2 AIK Fotboll *
| 19.07.2018 | AIK Fotboll | 1-1 AET | Shamrock Rovers | |
| 12.07.2018 | Shamrock Rovers | 0-1 | AIK Fotboll | |
Anorthosis FC 2-2 KF Laci *
| 19.07.2018 | KF Laci | 1-0 | Anorthosis FC | |
| 12.07.2018 | Anorthosis FC | 2-1 | KF Laci | |
*B36 Torshavn 2-1 OFK Titograd
| 19.07.2018 | OFK Titograd | 1-2 | B36 Torshavn | |
| 12.07.2018 | B36 Torshavn | 0-0 | OFK Titograd | |
FK Liepaja 2-4 BK Häcken *
| 19.07.2018 | BK Häcken | 1-2 | FK Liepaja | |
| 12.07.2018 | FK Liepaja | 0-3 | BK Häcken | |
*Chikhura Sachkhere 2-1 Beitar Jerusalem
| 19.07.2018 | Beitar Jerusalem | 1-2 | Chikhura Sachkhere | |
| 12.07.2018 | Chikhura Sachkhere | 0-0 | Beitar Jerusalem | |
Cliftonville Belfast 1-3 FC Nordsjælland *
| 19.07.2018 | FC Nordsjælland | 2-1 | Cliftonville Belfast | |
| 12.07.2018 | Cliftonville Belfast | 0-1 | FC Nordsjælland | |
*CS Fola Esch 0-0 KF Prishtina
| 19.07.2018 | KF Prishtina | 0-0/p.4-5 | CS Fola Esch | |
| 11.07.2018 | CS Fola Esch | 0-0 | KF Prishtina | |
*CSKA Sofia 1-1 Riga FC
| 19.07.2018 | Riga FC | 1-0/p.3-5 | CSKA Sofia | |
| 12.07.2018 | CSKA Sofia | 1-0 | Riga FC | |
Derry City 2-3 Dinamo Minsk *
| 19.07.2018 | Dinamo Minsk | 1-2 | Derry City | |
| 12.07.2018 | Derry City | 0-2 | Dinamo Minsk | |
*Dunajska Streda 3-2 Dinamo Tbilisi
| 19.07.2018 | Dinamo Tbilisi | 1-2 | Dunajska Streda | |
| 12.07.2018 | Dunajska Streda | 1-1 | Dinamo Tbilisi | |
Siroki Brijeg 3-3 Domžale *
| 19.07.2018 | Domžale | 1-1 | Siroki Brijeg | |
| 12.07.2018 | Siroki Brijeg | 2-2 | Domžale | |
Levadia Tallinn 1-3 Dundalk FC *
| 19.07.2018 | Dundalk FC | 2-1 | Levadia Tallinn | |
| 12.07.2018 | Levadia Tallinn | 0-1 | Dundalk FC | |
FC Lahti 0-3 FH Hafnarfjordur *
| 19.07.2018 | FH Hafnarfjordur | 0-0 | FC Lahti | |
| 12.07.2018 | FC Lahti | 0-3 | FH Hafnarfjordur | |
Ferencvaros TC 1-2 Maccabi Tel Aviv *
| 19.07.2018 | Maccabi Tel Aviv | 1-0 | Ferencvaros TC | |
| 12.07.2018 | Ferencvaros TC | 1-1 | Maccabi Tel Aviv | |
FK Buducnost 1-3 AS Trenčín *
| 19.07.2018 | AS Trenčín | 1-1 | FK Buducnost | |
| 12.07.2018 | FK Buducnost | 0-2 | AS Trenčín | |
Rudar Pljevlja 0-6 FK Partizan *
| 19.07.2018 | FK Partizan | 3-0 | Rudar Pljevlja | |
| 12.07.2018 | Rudar Pljevlja | 0-3 | FK Partizan | |
Banants Yerevan 1-5 FK Sarajevo *
| 19.07.2018 | FK Sarajevo | 3-0 | Banants Yerevan | |
| 11.07.2018 | Banants Yerevan | 1-2 | FK Sarajevo | |
*FK Trakai 1-0 Irtysh Pavlodar
| 19.07.2018 | Irtysh Pavlodar | 0-1 | FK Trakai | |
| 12.07.2018 | FK Trakai | 0-0 | Irtysh Pavlodar | |
*Gornik Zabrze 2-1 Zaria Balti
| 19.07.2018 | Zaria Balti | 1-1 | Gornik Zabrze | |
| 12.07.2018 | Gornik Zabrze | 1-0 | Zaria Balti | |
*Radnicki Nis 5-0 Gzira United
| 19.07.2018 | Gzira United | 0-1 | Radnicki Nis | |
| 12.07.2018 | Radnicki Nis | 4-0 | Gzira United | |
IBV Vestmannaeyjar 0-6 Sarpsborg 08 *
| 19.07.2018 | Sarpsborg 08 | 2-0 | IBV Vestmannaeyjar | |
| 12.07.2018 | IBV Vestmannaeyjar | 0-4 | Sarpsborg 08 | |
KI Klaksvik 2-3 VMFD Zalgiris *
| 19.07.2018 | VMFD Zalgiris | 1-1 | KI Klaksvik | |
| 11.07.2018 | KI Klaksvik | 1-2 | VMFD Zalgiris | |
*FK Ventspils 8-3 KS Luftëtari
| 19.07.2018 | KS Luftëtari | 3-3 | FK Ventspils | |
| 12.07.2018 | FK Ventspils | 5-0 | KS Luftëtari | |
KuPS Kuopio 1-2 FC København *
| 19.07.2018 | FC København | 1-1 | KuPS Kuopio | |
| 12.07.2018 | KuPS Kuopio | 0-1 | FC København | |
*Lech Poznan 3-2 Gandzasar Kapan
| 19.07.2018 | Gandzasar Kapan | 2-1 | Lech Poznan | |
| 12.07.2018 | Lech Poznan | 2-0 | Gandzasar Kapan | |
*FC Vaduz 3-3 Levski Sofia
| 17.07.2018 | Levski Sofia | 3-2 | FC Vaduz | |
| 11.07.2018 | FC Vaduz | 1-0 | Levski Sofia | |
Partizani Tirana 0-3 Maribor *
| 19.07.2018 | Maribor | 2-0 | Partizani Tirana | |
| 12.07.2018 | Partizani Tirana | 0-1 | Maribor | |
Neftchi Baku 3-5 Ujpest FC *
| 19.07.2018 | Ujpest FC | 4-0 | Neftchi Baku | |
| 12.07.2018 | Neftchi Baku | 3-1 | Ujpest FC | |
Petrocub Hîncești 2-3 NK Osijek *
| 19.07.2018 | NK Osijek | 2-1 | Petrocub Hîncești | |
| 12.07.2018 | Petrocub Hîncești | 1-1 | NK Osijek | |
*Stjarnan FC 3-1 Nomme Kalju
| 19.07.2018 | Nomme Kalju | 1-0 | Stjarnan FC | |
| 12.07.2018 | Stjarnan FC | 3-0 | Nomme Kalju | |
*Hibernian FC 12-5 NSI Runavik
| 19.07.2018 | NSI Runavik | 4-6 | Hibernian FC | |
| 12.07.2018 | Hibernian FC | 6-1 | NSI Runavik | |
Gabala FC 1-2 Progrès Niedercorn *
| 19.07.2018 | Progrès Niedercorn | 0-1 | Gabala FC | |
| 12.07.2018 | Gabala FC | 0-2 | Progrès Niedercorn | |
Rabotnicki Skopje 2-5 Budapest Honved *
| 17.07.2018 | Budapest Honved | 4-0 | Rabotnicki Skopje | |
| 11.07.2018 | Rabotnicki Skopje | 2-1 | Budapest Honved | |
RFCU Luxemburg 0-2 Viitorul Constanta *
| 19.07.2018 | Viitorul Constanta | 0-0 | RFCU Luxemburg | |
| 12.07.2018 | RFCU Luxemburg | 0-2 | Viitorul Constanta | |
Connah's Quay 1-5 Shakhter Soligorsk *
| 19.07.2018 | Shakhter Soligorsk | 2-0 | Connah's Quay | |
| 12.07.2018 | Connah's Quay | 1-3 | Shakhter Soligorsk | |
*Rangers FC 2-0 Shkupi
| 17.07.2018 | Shkupi | 0-0 | Rangers FC | |
| 12.07.2018 | Rangers FC | 2-0 | Shkupi | |
Ilves Tampere 1-3 Slavia Sofia *
| 19.07.2018 | Slavia Sofia | 2-1 | Ilves Tampere | |
| 12.07.2018 | Ilves Tampere | 0-1 | Slavia Sofia | |
FC Milsami 2-9 Slovan Bratislava *
| 19.07.2018 | Slovan Bratislava | 5-0 | FC Milsami | |
| 12.07.2018 | FC Milsami | 2-4 | Slovan Bratislava | |
*Rudar Velenje 10-0 SP Tre Fiori
| 19.07.2018 | SP Tre Fiori | 0-3 | Rudar Velenje | |
| 12.07.2018 | Rudar Velenje | 7-0 | SP Tre Fiori | |
*Spartak Subotica 3-1 Coleraine FC
| 19.07.2018 | Coleraine FC | 0-2 | Spartak Subotica | |
| 12.07.2018 | Spartak Subotica | 1-1 | Coleraine FC | |
Stumbras Kaunas 1-2 Apollon Limassol *
| 19.07.2018 | Apollon Limassol | 2-0 | Stumbras Kaunas | |
| 12.07.2018 | Stumbras Kaunas | 1-0 | Apollon Limassol | |
FC Samtredia 0-3 Tobol Kostanay *
| 19.07.2018 | Tobol Kostanay | 2-0 | FC Samtredia | |
| 10.07.2018 | FC Samtredia | 0-1 | Tobol Kostanay | |
Trans Narva 1-5 FK Zeljeznicar *
| 18.07.2018 | FK Zeljeznicar | 3-1 | Trans Narva | |
| 12.07.2018 | Trans Narva | 0-2 | FK Zeljeznicar | |
UE Engordany 1-10 Kairat Almaty *
| 19.07.2018 | Kairat Almaty | 7-1 | UE Engordany | |
| 12.07.2018 | UE Engordany | 0-3 | Kairat Almaty | |
*Pyunik FC 3-0 Vardar Skopje
| 19.07.2018 | Vardar Skopje | 0-2 | Pyunik FC | |
| 12.07.2018 | Pyunik FC | 1-0 | Vardar Skopje | |