2008–09 Manchester United F.C. season Knockout phase Knockout phase

| Date_ | Round | Opponents | H_A | Result_F_A | Attendance |
|---|---|---|---|---|---|
| 24 February 2009 | First knockout round First leg | Internazionale | A | 0–0 | 80018 |
| 11 March 2009 | First knockout round Second leg | Internazionale | H | 2–0 | 74769 |
| 7 April 2009 | Quarter-final First leg | Porto | H | 2–2 | 74517 |
| 15 April 2009 | Quarter-final Second leg | Porto | A | 1–0 | 50010 |
| 29 April 2009 | Semi-final First leg | Arsenal | H | 1–0 | 74733 |
| 5 May 2009 | Semi-final Second leg | Arsenal | A | 3–1 | 59867 |
| 27 May 2009 | Final | Barcelona | N | 0–2 | 62467 |