| Regular Season: Week 1 |
 Eagles |
at |
 Cardinals |
Sunday, September 11, 1966 |
3:00PM |
PHI 13, STL 16 |
| Regular Season: Week 2 |
 Redskins |
at |
Cardinals |
Sunday, September 18, 1966 |
3:00PM |
WAS 7, STL 23 |
| Regular Season: Week 3 |
Cardinals |
at |
 Browns |
Sunday, September 25, 1966 |
3:00PM |
STL 34, CLE 28 |
| Regular Season: Week 4 |
Cardinals |
at |
Eagles |
Sunday, October 2, 1966 |
3:00PM |
STL 41, PHI 10 |
| Regular Season: Week 6 |
 Giants |
at |
Cardinals |
Sunday, October 9, 1966 |
3:00PM |
NYG 19, STL 24 |
| Regular Season: Week 6 |
 Cowboys |
at |
Cardinals |
Sunday, October 16, 1966 |
3:00PM |
DAL 10, STL 10 |
| Regular Season: Week 7 |
Cardinals |
at |
Redskins |
Sunday, October 23, 1966 |
3:00PM |
STL 20, WAS 26 |
| Regular Season: Week 8 |
 Bears |
at |
Cardinals |
Monday, October 31, 1966 |
3:00PM |
CHI 17, STL 24 |
| Regular Season: Week 9 |
Cardinals |
at |
Giants |
Sunday, November 6, 1966 |
3:00PM |
STL 20, NYG 17 |
| Regular Season: Week 10 |
Cardinals |
at |
 Steelers |
Sunday, November 13, 1966 |
3:00PM |
STL 9, PIT 30 |
| Regular Season: Week 12 |
Steelers |
at |
Cardinals |
Sunday, November 27, 1966 |
3:00PM |
PIT 3, STL 6 |
| Regular Season: Week 13 |
Cardinals |
at |
Cowboys |
Sunday, December 4, 1966 |
3:00PM |
STL 17, DAL 31 |
| Regular Season: Week 14 |
Cardinals |
at |
 Falcons |
Sunday, December 11, 1966 |
3:00PM |
STL 10, ATL 16 |
| Regular Season: Week 15 |
Browns |
at |
Cardinals |
Saturday, December 17, 1966 |
3:00PM |
CLE 38, STL 10 |