| Sofia to Portage (Michigan) | 5,099.05 mi (8,206.13 km) |
| Sofia to Portage (Wisconsin) | 5,173.64 mi (8,326.17 km) |
| Sofia to Portales (New Mexico) | 6,148.35 mi (9,894.81 km) |
| Sofia to Porterville (California) | 6,500.58 mi (10,461.68 km) |
| Sofia to Portland (Maine) | 4,437.04 mi (7,140.73 km) |
| Sofia to Portland (Oregon) | 5,991.27 mi (9,642.01 km) |
| Sofia to Portland (Tennessee) | 5,405.66 mi (8,699.57 km) |
| Sofia to Portland (Texas) | 6,273.54 mi (10,096.29 km) |
| Sofia to Portsmouth (New Hampshire) | 4,482.86 mi (7,214.47 km) |
| Sofia to Portsmouth (Ohio) | 5,161.16 mi (8,306.08 km) |
| Sofia to Portsmouth (Virginia) | 4,980.00 mi (8,014.53 km) |
| Sofia to Post Falls (Idaho) | 5,736.07 mi (9,231.31 km) |
| Sofia to Potomac (Maryland) | 4,918.00 mi (7,914.76 km) |
| Sofia to Potomac Park (California) | 6,542.07 mi (10,528.44 km) |
| Sofia to Pottstown (Pennsylvania) | 4,799.97 mi (7,724.80 km) |
