| Comacchio to Portage (Michigan) | 4,583.86 mi (7,377.01 km) |
| Comacchio to Portage (Wisconsin) | 4,672.73 mi (7,520.04 km) |
| Comacchio to Portales (New Mexico) | 5,656.02 mi (9,102.49 km) |
| Comacchio to Porterville (California) | 6,077.89 mi (9,781.42 km) |
| Comacchio to Portland (Maine) | 3,897.47 mi (6,272.37 km) |
| Comacchio to Portland (Oregon) | 5,618.37 mi (9,041.90 km) |
| Comacchio to Portland (Tennessee) | 4,874.85 mi (7,845.32 km) |
| Comacchio to Portland (Texas) | 5,745.15 mi (9,245.93 km) |
| Comacchio to Portsmouth (New Hampshire) | 3,942.11 mi (6,344.22 km) |
| Comacchio to Portsmouth (Ohio) | 4,629.11 mi (7,449.83 km) |
| Comacchio to Portsmouth (Virginia) | 4,430.96 mi (7,130.94 km) |
| Comacchio to Post Falls (Idaho) | 5,345.52 mi (8,602.78 km) |
| Comacchio to Potomac (Maryland) | 4,375.93 mi (7,042.38 km) |
| Comacchio to Potomac Park (California) | 6,116.72 mi (9,843.91 km) |
| Comacchio to Pottstown (Pennsylvania) | 4,258.73 mi (6,853.77 km) |
