| The Green Bay Packers have traded 1990 Round 2 pick - ATL to the Detroit Lions! | |
| The Green Bay Packers have traded 1990 Round 4 pick - GB to the Detroit Lions! | |
| The Green Bay Packers have traded 1991 Round 3 pick - GB to the Detroit Lions! | |
| The Detroit Lions have traded DE Richard Dent to the Green Bay Packers! | |
| The Detroit Lions have traded 1990 Round 5 pick - DET to the Green Bay Packers! | |
| The Detroit Lions have traded TE Ken Whisenhunt to the Baltimore Ravens! | |
| The Baltimore Ravens have traded 1992 Round 3 pick - BAL to the Detroit Lions! | |
| The Detroit Lions have traded 1989 Round 3 pick - BAL to the Baltimore Ravens! | |
| The Baltimore Ravens have traded 1989 Round 3 pick - NYJ to the Detroit Lions! | |
| The Detroit Lions have traded WR Ed McCaffrey to the Baltimore Ravens! | |
| The Detroit Lions have traded SS Leonard Smith to the Baltimore Ravens! | |
| The Baltimore Ravens have traded 1989 Round 3 pick - IND to the Detroit Lions! | |
| The Baltimore Ravens have traded 1989 Round 3 pick - BAL to the Detroit Lions! | |
| The Baltimore Ravens have traded 1989 Round 4 pick - ATL to the Detroit Lions! | |
| The Detroit Lions have traded DE Ray Childress to the New York Jets! | |
| The New York Jets have traded 1989 Round 1 pick - NYJ to the Detroit Lions! | |
| The New York Jets have traded 1990 Round 2 pick - NYJ to the Detroit Lions! | |
| The Detroit Lions have traded QB Joe Montana to the Baltimore Ravens! | |
| The Detroit Lions have traded DT Bill Maas to the Baltimore Ravens! | |
| The Detroit Lions have traded 1989 Round 2 pick - CIN to the Baltimore Ravens! | |
| The Detroit Lions have traded 1990 Round 4 pick - DET to the Baltimore Ravens! | |
| The Baltimore Ravens have traded QB John Elway to the Detroit Lions! | |
| The Detroit Lions have traded 1988 Round 1 pick - CIN to the Indianapolis Colts! | |
| The Detroit Lions have traded 1989 Round 2 pick - DET to the Indianapolis Colts! | |
| The Indianapolis Colts have traded 1988 Round 1 pick - IND to the Detroit Lions! | |
| The London Monarchs have traded LB Otis Wilson to the Detroit Lions! | |
| The Detroit Lions have traded 1988 Round 4 pick - DET to the London Monarchs! | |
| The Detroit Lions have traded WR Stephone Paige to the Chicago Cardinals! | |
| The Detroit Lions have traded G Mark Cooper to the Chicago Cardinals! | |
| The Chicago Cardinals have traded 1988 Round 4 pick - CHC to the Detroit Lions! | |
| The Chicago Cardinals have traded 1989 Round 2 pick - CHC to the Detroit Lions! | |
| The London Monarchs have traded 1988 Round 4 pick - LON to the Detroit Lions! | |
| The Detroit Lions have traded DT William Perry to the London Monarchs! | |
| The Cincinnati Bengals have traded 1989 Round 2 pick - CIN to the Detroit Lions! | |
| The Detroit Lions have traded LB Kevin Greene to the Cincinnati Bengals! | |
| The Cincinnati Bengals have traded CB Bruce McNorton to the Detroit Lions! | |
| The Cincinnati Bengals have traded 1988 Round 1 pick - CIN to the Detroit Lions! | |
| The Cincinnati Bengals have traded LB Mel Owens to the Detroit Lions! | |
| The Cincinnati Bengals have traded DT Mark Gunn to the Detroit Lions! | |
| The Cincinnati Bengals have traded G Brad Edelman to the Detroit Lions! | |
| The Detroit Lions have traded 1987 Round 4 pick - DET to the Indianapolis Colts! | |
| The Indianapolis Colts have traded 1987 Round 5 pick - IND to the Detroit Lions! | |
| The Indianapolis Colts have traded 1988 Round 7 pick - IND to the Detroit Lions! | |
| The Detroit Lions have traded 1988 Round 1 pick - DET to the Chicago Bears! | |
| The Chicago Bears have traded QB Joe Montana to the Detroit Lions! | |
| The Detroit Lions have traded 1987 Round 3 pick - DET to the Chicago Bears! | |
| The Detroit Lions have traded 1987 Round 1 pick - DET to the Chicago Bears! | |
| The Detroit Lions have traded QB Mike Tomczak to the Chicago Bears! | |