Alashkert Martuni 0-6 Celtic FC *
| 18.07.2018 | Celtic FC | 3-0 | Alashkert Martuni | |
| 10.07.2018 | Alashkert Martuni | 0-3 | Celtic FC | |
Cork City 0-4 Legia Warszawa *
| 17.07.2018 | Legia Warszawa | 3-0 | Cork City | |
| 10.07.2018 | Cork City | 0-1 | Legia Warszawa | |
*Ludogorets 9-0 Crusaders Belfast
| 17.07.2018 | Crusaders Belfast | 0-2 | Ludogorets | |
| 11.07.2018 | Ludogorets | 7-0 | Crusaders Belfast | |
*FC Astana 3-0 Sutjeska Niksic
| 18.07.2018 | Sutjeska Niksic | 0-2 | FC Astana | |
| 11.07.2018 | FC Astana | 1-0 | Sutjeska Niksic | |
Spartaks Jurmala 0-2 FK Crvena Zvezda *
| 17.07.2018 | FK Crvena Zvezda | 2-0 | Spartaks Jurmala | |
| 11.07.2018 | Spartaks Jurmala | 0-0 | FK Crvena Zvezda | |
*FK Kukesi 1-1 Valletta FC
| 17.07.2018 | Valletta FC | 1-1 | FK Kukesi | |
| 11.07.2018 | FK Kukesi | 0-0 | Valletta FC | |
Flora Tallinn 2-7 Hapoel Be'er Sheva *
| 17.07.2018 | Hapoel Be'er Sheva | 3-1 | Flora Tallinn | |
| 10.07.2018 | Flora Tallinn | 1-4 | Hapoel Be'er Sheva | |
Vikingur Gota 2-5 HJK Helsinki *
| 17.07.2018 | HJK Helsinki | 3-1 | Vikingur Gota | |
| 10.07.2018 | Vikingur Gota | 1-2 | HJK Helsinki | |
Olimpija Ljubljana 0-1 Qarabag FK *
| 18.07.2018 | Qarabag FK | 0-0 | Olimpija Ljubljana | |
| 11.07.2018 | Olimpija Ljubljana | 0-1 | Qarabag FK | |
*Shkendija'79 5-4 The New Saints
| 17.07.2018 | The New Saints | 4-0 | Shkendija'79 | |
| 10.07.2018 | Shkendija'79 | 5-0 | The New Saints | |
Torpedo Kutaisi 2-4 Sheriff Tiraspol *
| 18.07.2018 | Sheriff Tiraspol | 3-0 | Torpedo Kutaisi | |
| 10.07.2018 | Torpedo Kutaisi | 2-1 | Sheriff Tiraspol | |
Valur Reykjavik 2-3 Rosenborg BK *
| 18.07.2018 | Rosenborg BK | 3-1 | Valur Reykjavik | |
| 11.07.2018 | Valur Reykjavik | 1-0 | Rosenborg BK | |
F91 Dudelange 2-3 Vidi FC *
| 17.07.2018 | Vidi FC | 2-1 | F91 Dudelange | |
| 10.07.2018 | F91 Dudelange | 1-1 | Vidi FC | |
*Spartak Trnava 2-1 Zrinjski Mostar
| 18.07.2018 | Zrinjski Mostar | 1-1 | Spartak Trnava | |
| 11.07.2018 | Spartak Trnava | 1-0 | Zrinjski Mostar | |