| Havre de Grace to Portage (Michigan) | 527.53 mi (848.98 km) |
| Havre de Grace to Portage (Wisconsin) | 742.59 mi (1,195.08 km) |
| Havre de Grace to Portales (New Mexico) | 1,544.55 mi (2,485.72 km) |
| Havre de Grace to Porterville (California) | 2,333.11 mi (3,754.78 km) |
| Havre de Grace to Portland (Maine) | 415.14 mi (668.10 km) |
| Havre de Grace to Portland (Oregon) | 2,370.75 mi (3,815.36 km) |
| Havre de Grace to Portland (Tennessee) | 601.47 mi (967.97 km) |
| Havre de Grace to Portland (Texas) | 1,455.07 mi (2,341.71 km) |
| Havre de Grace to Portsmouth (New Hampshire) | 367.84 mi (591.98 km) |
| Havre de Grace to Portsmouth (Ohio) | 369.95 mi (595.38 km) |
| Havre de Grace to Portsmouth (Virginia) | 187.09 mi (301.09 km) |
| Havre de Grace to Post Falls (Idaho) | 2,091.57 mi (3,366.06 km) |
| Havre de Grace to Potomac (Maryland) | 68.52 mi (110.27 km) |
| Havre de Grace to Potomac Park (California) | 2,345.74 mi (3,775.11 km) |
| Havre de Grace to Pottstown (Pennsylvania) | 54.58 mi (87.84 km) |
