| @ New Jersey | L 92–99 | | | | Rutgers Athletic Center | 58–23 |- align="center" bgcolor="#ccffcc" | 82 | March 30, 1980 | Boston | W 116–110 | | | | The Spectrum | 59–23 Playoffs |- align="center" bgcolor="#ccffcc" | 1 | April 2, 1980 | Washington | W 111–96 | Lionel Hollins (21) | Caldwell Jones (26) | Maurice Cheeks (6) | The Spectrum12,567 | 1–0 |- align="center" bgcolor="#ccffcc" | 2 | April 4, 1980 | @ Washington | W 112–104 | Julius Erving (31) | Lionel Hollins (9) | Maurice Cheeks (7) | Capital Centre18,397 | 2–0 |- |- align="center" bgcolor="#ccffcc" | 1 | April 6, 1980 | Atlanta | W 107–104 | Julius Erving (28) | Caldwell Jones (13) | Maurice Cheeks (9) | The Spectrum10,561 | 1–0 |- align="center" bgcolor="#ccffcc" | 2 | April 9, 1980 | Atlanta | W 99–92 | Darryl Dawkins (22) | Bobby Jones (9) | Maurice Cheeks (7) | The Spectrum18,276 | 2–0 |- align="center" bgcolor="#ffcccc" | 3 | April 10, 1980 | @ Atlanta | L 93–105 | Julius Erving (26) | Caldwell Jones (16) | Caldwell Jones (4) | The Omni15,617 | 2–1 |- align="center" bgcolor="#ccffcc" | 4 | April 13, 1980 | @ Atlanta | W 107–83 | Hollins, B. Jones (20) | Caldwell Jones (11) | Maurice Cheeks (5) | The Omni15,617 | 3–1 |- align="center" bgcolor="#ccffcc" | 5 | April 15, 1980 | Atlanta | W 105–100 | Dawkins, Erving (30) | Caldwell Jones (13) | Lionel Hollins (7) | The Spectrum18,276 | 4–1 |- |- align="center" bgcolor="#ccffcc" | 1 | April 18, 1980 | @ Boston | W 96–93 | Julius Erving (29) | Darryl Dawkins (10) | Cheeks, Hollins (6) | Boston Garden15,320 | 1–0 |- align="center" bgcolor="#ffcccc" | 2 | April 20, 1980 | @ Boston | L 90–96 | Julius Erving (24) | Darryl Dawkins (11) | Lionel Hollins (5) | Boston Garden15,320 | 1–1 |- align="center" bgcolor="#ccffcc" | 3 | April 23, 1980 | Boston | W 99–97 | Julius Erving (28) | Julius Erving (11) | Lionel Hollins (9) | The Spectrum18,276 | 2–1 |- align="center" bgcolor="#ccffcc" | 4 | April 25, 1980 | Boston | W 102–90 | Julius Erving (30) | Julius Erving (10) | Maurice Cheeks (10) | The Spectrum18,276 | 3–1 |- align="center" bgcolor="#ccffcc" | 5 | April 27, 1980 | @ Boston