| Erba to Portage (Michigan) | 4,421.71 mi (7,116.05 km) |
| Erba to Portage (Wisconsin) | 4,512.01 mi (7,261.38 km) |
| Erba to Portales (New Mexico) | 5,495.94 mi (8,844.86 km) |
| Erba to Porterville (California) | 5,927.70 mi (9,539.71 km) |
| Erba to Portland (Maine) | 3,733.92 mi (6,009.16 km) |
| Erba to Portland (Oregon) | 5,477.78 mi (8,815.63 km) |
| Erba to Portland (Tennessee) | 4,711.56 mi (7,582.52 km) |
| Erba to Portland (Texas) | 5,581.91 mi (8,983.21 km) |
| Erba to Portsmouth (New Hampshire) | 3,778.54 mi (6,080.97 km) |
| Erba to Portsmouth (Ohio) | 4,465.78 mi (7,186.97 km) |
| Erba to Portsmouth (Virginia) | 4,267.45 mi (6,867.80 km) |
| Erba to Post Falls (Idaho) | 5,201.90 mi (8,371.65 km) |
| Erba to Potomac (Maryland) | 4,212.33 mi (6,779.10 km) |
| Erba to Potomac Park (California) | 5,966.05 mi (9,601.43 km) |
| Erba to Pottstown (Pennsylvania) | 4,095.14 mi (6,590.50 km) |
