1979 Toronto Blue Jays season Game log September

| Date_ | Opponent | Score | Loss | Record |
|---|---|---|---|---|
| September 1 | Mariners | 3–2 (10) | Buskey (6–6) | 43–92 |
| September 2 | Mariners | 8–5 | Twitchell (0–2) | 44–92 |
| September 3 | @ Orioles | 2–1 (11) | Buskey (6–7) | 44–93 |
| September 3 | @ Orioles | 5–1 | Lemanczyk (8–10) | 44–94 |
| September 5 | @ Orioles | Postponed (rain) Rescheduled for September 6 | Postponed (rain) Rescheduled for September 6 | Postponed (rain) Rescheduled for September 6 |
| September 6 | @ Orioles | 5–0 | Edge (2–2) | 44–95 |
| September 7 | @ Indians | 9–8 | Buskey (6–8) | 44–96 |
| September 8 | @ Indians | 5–4 | Stieb (6–6) | 44–97 |
| September 9 | @ Indians | 14–10 | Buskey (6–9) | 44–98 |
| September 11 | Orioles | 3–1 | McGregor (11–5) | 45–98 |
| September 12 | Orioles | 3–2 | Palmer (8–6) | 46–98 |