| No. | Club | Total | Average | Games | |
| 1 | Aston Villa FC | ENG | 230.788 | 38.465 | 6 |
| 2 | SG Eintracht Frankfurt | GER | 226.300 | 56.575 | 4 |
| 3 | Fenerbahçe SK İstanbul | TUR | 185.306 | 37.061 | 5 |
| 4 | Lille OSC | FRA | 118.469 | 23.694 | 5 |
| 5 | Club Brugge KV | BEL | 109.481 | 18.247 | 6 |
| 6 | Legia Warszawa SA | POL | 107.245 | 26.811 | 4 |
| 7 | ACF Fiorentina | ITA | 106.162 | 17.694 | 6 |
| 8 | PAOK Thessaloniki | GRC | 98.703 | 19.741 | 5 |
| 9 | Ferencvárosi TC | HUN | 79.700 | 19.925 | 4 |
| 10 | K Slovan Bratislava | SVK | 68.255 | 17.064 | 4 |
| 11 | GNK Dinamo Zagreb | CRO | 61.024 | 12.205 | 5 |
| 12 | FC Astana | KAZ | 60.071 | 20.024 | 3 |
| 13 | Beşiktaş JK İstanbul | TUR | 54.983 | 18.328 | 3 |
| 14 | FC Viktoria Plzeň | CZE | 51.476 | 10.295 | 5 |
| 15 | AZ Alkmaar | NED | 48.004 | 16.001 | 3 |
| 16 | Aberdeen FC | SCO | 46.879 | 15.626 | 3 |
| 17 | FC Spartak Trnava | SVK | 40.225 | 13.408 | 3 |
| 18 | KRC Genk | BEL | 32.263 | 10.754 | 3 |
| 19 | KAA Gent | BEL | 30.773 | 7.693 | 4 |
| 20 | PFC Ludogorets Razgrad | BGR | 29.672 | 7.418 | 4 |
| 21 | FK Bodø 1916 Glimt | NOR | 28.776 | 7.194 | 4 |
| 22 | HJK Helsinki | FIN | 27.706 | 9.235 | 3 |
| 23 | KF Ballkani Therandë | KOS | 19.062 | 6.354 | 3 |
| 24 | Maccabi Tel Aviv FC | ISR | 18.928 | 4.732 | 4 |
| 25 | HSK Zrinjski Mostar | BIH | 18.010 | 6.003 | 3 |
| 26 | FC Nordsjælland | DNK | 16.654 | 5.551 | 3 |
| 27 | NK Olimpija Ljubljana | SVN | 11.413 | 3.804 | 3 |
| 28 | FC Lugano | SUI | 10.897 | 3.632 | 3 |
| 29 | FK Čukarički Beograd | SRB | 7.238 | 2.413 | 3 |
| 30 | KÍ Klaksvík | FRO | 4.561 | 1.520 | 3 |
| 31 | U Breiðablik Kópavogur | ISL | 3.578 | 1.193 | 3 |
| 32 | FK Zorya Lugans'k | UKR | 1.744 | 581 | 3 |
| Entered from Europa League : | |||||
| Olympiakos SF Piraios | GRC | 126.354 | 31.589 | 4 | |
| AFC Ajax Amsterdam | NED | 104.464 | 52.232 | 2 | |
| Servette FC Genève 1890 | SUI | 29.201 | 14.601 | 2 | |
| SK Sturm Graz | AUT | 26.642 | 13.321 | 2 | |
| Real Betis Balompié | ESP | 25.091 | 25.091 | 1 | |
| R Union Saint-Gilloise | BEL | 22.537 | 11.269 | 2 | |
| Molde FK | NOR | 13.263 | 6.632 | 2 | |
| Maccabi Haifa FC | ISR | 2.863 | 1.432 | 2 | |
| Final : | |||||
| Agia Sophia Stadium, Athinai | GRC | 26.842 | 26.842 | 1 | |
| . | Total | 16.536 |