Wednesday 22 July
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |   Egnatia Rrogozhinë vs Celje | 3 - 3 | UEFA Champions League Stage : Round 2nd Qualifying | Arena Egnatia |
Tuesday 28 July
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 19h15 | Celje vs Egnatia Rrogozhinë | 1 - 1 | UEFA Champions League Stage : Round 2nd Qualifying | Arena Z’dezele |
Tuesday 4 August
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 17h00 |  Ararat-Armenia vs Celje | 2 - 1 | UEFA Champions League Stage : Round 3rd Qualifying | Vazgen Sargsyan Republican Stadium |
Tuesday 11 August
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 19h15 | Celje vs Ararat-Armenia | 2 - 0 | UEFA Champions League Stage : Round 3rd Qualifying | Arena Z’dezele |
Wednesday 19 August
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |  Slovan Bratislava vs Celje | 1 - 1 | UEFA Champions League Stage : Play-offs | Tehelne Pole Stadion |
Wednesday 26 August
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 | Celje vs Slovan Bratislava | 1 - 2 | UEFA Champions League Stage : Play-offs | Arena Z’dezele |
Wednesday 16 September
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |  Bayer Leverkusen vs Celje | - | UEFA Europa League Stage : League phase Matchday 1 | BayArena |
Thursday 15 October
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 17h45 |  Celje vs Omonia Nicosia | - | UEFA Europa League Stage : League phase Matchday 2 | - |
Thursday 22 October
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 20h00 |  Celje vs Red Bull Salzburg | - | UEFA Europa League Stage : League phase Matchday 3 | - |
Thursday 5 November
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 21h00 |  Sturm Graz vs Celje | - | UEFA Europa League Stage : League phase Matchday 4 | Merkur-Arena |
Thursday 26 November
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 21h00 |  Ferencvarosi TC vs Celje | - | UEFA Europa League Stage : League phase Matchday 5 | Groupama Arena |
Thursday 10 December
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 21h00 |  Celje vs Olympiakos Piraeus | - | UEFA Europa League Stage : League phase Matchday 6 | - |
Thursday 21 January
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 18h45 | Ararat-Armenia vs Celje | - | UEFA Europa League Stage : League phase Matchday 7 | Vazgen Sargsyan Republican Stadium |
Thursday 28 January
| Time | Match | Score | Competition | Stadium |
|---|---|---|---|---|
| 21h00 |  Celje vs NEC Nijmegen | - | UEFA Europa League Stage : League phase Matchday 8 | - |