| Sozopol to Portage (Michigan) | 5,271.80 mi (8,484.14 km) |
| Sozopol to Portage (Wisconsin) | 5,338.56 mi (8,591.59 km) |
| Sozopol to Portales (New Mexico) | 6,306.55 mi (10,149.41 km) |
| Sozopol to Porterville (California) | 6,622.49 mi (10,657.88 km) |
| Sozopol to Portland (Maine) | 4,624.77 mi (7,442.85 km) |
| Sozopol to Portland (Oregon) | 6,091.68 mi (9,803.62 km) |
| Sozopol to Portland (Tennessee) | 5,586.74 mi (8,990.99 km) |
| Sozopol to Portland (Texas) | 6,451.87 mi (10,383.28 km) |
| Sozopol to Portsmouth (New Hampshire) | 4,671.22 mi (7,517.61 km) |
| Sozopol to Portsmouth (Ohio) | 5,343.34 mi (8,599.27 km) |
| Sozopol to Portsmouth (Virginia) | 5,172.94 mi (8,325.04 km) |
| Sozopol to Post Falls (Idaho) | 5,845.59 mi (9,407.57 km) |
| Sozopol to Potomac (Maryland) | 5,106.57 mi (8,218.23 km) |
| Sozopol to Potomac Park (California) | 6,665.13 mi (10,726.49 km) |
| Sozopol to Pottstown (Pennsylvania) | 4,988.18 mi (8,027.70 km) |
