Europa League 2012/13, Second qualifying round |
 | 26.07.2012 |  | Portadown | – | Slaven |  | 2:4 (1:2) |
| Portadown |
Europa League 2012/13, Second qualifying round |
| 19.07.2012 | | Slaven | – | Portadown | | 6:0 (3:0) |
| Koprivnica |
Europa League 2012/13, First Qualifying Round |
| 10.07.2012 | | Portadown | – | Shkëndija |  | 2:1 (0:1) |
| Portadown |
Europa League 2012/13, First Qualifying Round |
| 03.07.2012 | | Shkëndija | – | Portadown | | 0:0 |
| Tetovo |
Europa League 2010/11, Second qualifying round |
| 22.07.2010 |  | Qarabağ | – | Portadown | | 1:1 (0:0) |
| Bakı |
Europa League 2010/11, Second qualifying round |
| 15.07.2010 | | Portadown | – | Qarabağ | | 1:2 (1:0) |
| Portadown |
Europa League 2010/11, First Qualifying Round |
| 08.07.2010 |  | Skonto | – | Portadown | | 0:1 (0:1) |
| Rīga |
Europa League 2010/11, First Qualifying Round |
| 01.07.2010 | | Portadown | – | Skonto | | 1:1 (1:0) |
| Portadown |
UEFA Cup 2006/07, First Qualifying Round |
| 27.07.2006 |  | Kaunas | – | Portadown | | 1:0 (1:0) |
| Kaunas |
UEFA Cup 2006/07, First Qualifying Round |
| 13.07.2006 | | Portadown | – | Kaunas | | 1:3 (0:2) |
| Portadown |
UEFA Cup 2005/06, First Qualifying Round |
| 28.07.2005 |  | Viking | – | Portadown | | 1:0 (0:0) |
| Stavanger |
UEFA Cup 2005/06, First Qualifying Round |
| 14.07.2005 | | Portadown | – | Viking | | 1:2 (0:0) |
| Portadown |
UEFA Cup 2004/05, First Qualifying Round |
| 29.07.2004 | | Žalgiris | – | Portadown | | 2:0 (2:0) |
| Vilnius |
UEFA Cup 2004/05, First Qualifying Round |
| 15.07.2004 | | Portadown | – | Žalgiris | | 2:2 (2:0) |
| Portadown |
UEFA Cup 2003/04, Qualifying round |
| 28.08.2003 | | Portadown | – | Malmö |  | 0:2 (0:0) |
| Portadown |
UEFA Cup 2003/04, Qualifying round |
| 14.08.2003 | | Malmö | – | Portadown | | 4:0 (2:0) |
| Malmö |
UEFA Cup 1999/00, Qualifying round |
| 24.08.1999 |  | CSKA Sofia | – | Portadown | | 5:0 (2:0) |
| Sofia |
UEFA Cup 1999/00, Qualifying round |
| 12.08.1999 | | Portadown | – | CSKA Sofia | | 0:3 (0:1) |
| Portadown |
UEFA Cup 1996/97, Preliminary Round |
| 24.07.1996 |  | Vojvodina | – | Portadown | | 4:1 (2:0) |
| Novi Sad |
UEFA Cup 1996/97, Preliminary Round |
| 17.07.1996 | | Portadown | – | Vojvodina | | 0:1 (0:1) |
| Portadown |
UEFA Cup 1994/95, Qualifying round |
| 23.08.1994 |  | Slovan Bratislava | – | Portadown | | 3:0 (2:0) |
| Bratislava |
UEFA Cup 1994/95, Qualifying round |
| 09.08.1994 | | Portadown | – | Slovan Bratislava | | 0:2 (0:0) |
| Portadown |
UEFA Cup 1992/93, 1/32 finals |
| 29.09.1992 | | Portadown | – | Standard |  | 0:0 |
| Portadown |
UEFA Cup 1992/93, 1/32 finals |
| 16.09.1992 | | Standard | – | Portadown | | 5:0 (2:0) |
| Liège |
UEFA Cup 1974/75, 1/16 finals |
| 06.11.1974 | | Portadown | – | Partizan | | 1:1 (1:0) |
| Portadown |
UEFA Cup 1974/75, 1/16 finals |
| 23.10.1974 | | Partizan | – | Portadown | | 5:0 (2:0) |
| Belgrade |
UEFA Cup 1974/75, 1/32 finals |
| 01.10.1974 | | Portadown | – | Valur |  | 2:1 (0:0) |
| Portadown |
UEFA Cup 1974/75, 1/32 finals |
| 18.09.1974 | | Valur | – | Portadown | | 0:0 |
| Reykjavík |
