| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| cheap rental cars portland airport | 1.21 | 0.3 | 8605 | 47 |
| cheap rental cars portland oregon airport | 1.81 | 1 | 5780 | 98 |
| cheap rental cars portland maine airport | 0.35 | 0.3 | 7342 | 84 |
| portland car rental airport cheap | 0.32 | 0.2 | 6274 | 30 |
| cheap car rental portland oregon airport | 1.25 | 0.2 | 5446 | 15 |
