1966 Kansas City Chiefs season Season schedule Season schedule

| Week | Date_ | Opponent | Result_ | Attendance |
|---|---|---|---|---|
| 1 | September 11, 1966 | at Buffalo Bills | W 42–20 | 42023 |
| 2 | September 18, 1966 | at Oakland Raiders | W 32-10 | 50746 |
| 3 | September 25, 1966 | at Boston Patriots | W 43-24 | 22641 |
| 4 | October 2, 1966 | Buffalo Bills | L 29-14 | 43885 |
| 5 | October 8, 1966 | Denver Broncos | W 37-10 | 33929 |
| 6 | October 16, 1966 | Oakland Raiders | L 34–13 | 33057 |
| 7 | October 23, 1966 | at Denver Broncos | W 56–10 | 26196 |
| 8 | October 30, 1966 | Houston Oilers | W 48–23 | 31676 |
| 9 | November 6, 1966 | San Diego Chargers | W 24–14 | 40986 |
| 10 | November 13, 1966 | Miami Dolphins | W 34-16 | 34063 |