Regular season and playoffs
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | LAR | 5 | 24 | 10 | 41.7 | 144 | 0 | 1 | 3 | 6.0 | 44.4 |
| 1975 | LAR | 16 | 93 | 47 | 50.5 | 652 | 1 | 4 | 14 | 7.0 | 59.1 |
| 1976 | LAR | 5 | 52 | 20 | 38.5 | 273 | 1 | 5 | 5 | 5.2 | 22.8 |
| 1977 | PHI | 14 | 346 | 166 | 48.0 | 2183 | 18 | 21 | 47 | 6.3 | 60.4 |
| 1978 | PHI | 17 | 433 | 225 | 52.0 | 2677 | 17 | 16 | 44 | 6.2 | 68.8 |
| 1979 | PHI | 18 | 436 | 217 | 49.8 | 3072 | 23 | 13 | 39 | 7.0 | 78.1 |
| 1980 | PHI | 19 | 556 | 301 | 54.1 | 4101 | 29 | 19 | 31 | 7.4 | 81.1 |
| 1981 | PHI | 17 | 485 | 263 | 54.2 | 3249 | 24 | 20 | 24 | 6.7 | 74.5 |
| 1982 | PHI | 9 | 286 | 167 | 58.4 | 2076 | 12 | 12 | 31 | 7.3 | 77.5 |
| 1983 | PHI | 16 | 446 | 235 | 52.7 | 3315 | 20 | 18 | 53 | 7.4 | 75.1 |
| 1984 | PHI | 13 | 427 | 234 | 54.8 | 2754 | 16 | 14 | 34 | 6.4 | 73.5 |
| 1985 | PHI | 16 | 484 | 255 | 52.7 | 3450 | 17 | 20 | 34 | 7.1 | 70.2 |
| 1986 | PHI | 10 | 245 | 128 | 52.2 | 1405 | 8 | 6 | 22 | 5.7 | 70.2 |
| 1988 | MIA | 16 | 14 | 9 | 64.3 | 123 | 1 | 0 | 1 | 8.8 | 116.1 |
| 1989 | KC | 6 | 61 | 36 | 59.0 | 385 | 2 | 5 | 1 | 6.3 | 54.3 |