| Sofia to Roy (Utah) | 6,009.70 mi (9,671.68 km) |
| Sofia to Royal Kunia (Hawaii) | 8,006.70 mi (12,885.53 km) |
| Sofia to Royal Oak (Michigan) | 4,993.47 mi (8,036.21 km) |
| Sofia to Royal Palm Beach (Florida) | 5,618.80 mi (9,042.58 km) |
| Sofia to Royse City (Texas) | 5,964.28 mi (9,598.58 km) |
| Sofia to Ruskin (Florida) | 5,667.61 mi (9,121.14 km) |
| Sofia to Russellville (Alabama) | 5,555.95 mi (8,941.44 km) |
| Sofia to Russellville (Arkansas) | 5,725.28 mi (9,213.94 km) |
| Sofia to Ruston (Louisiana) | 5,848.04 mi (9,411.51 km) |
| Sofia to Rutherford (New Jersey) | 4,712.32 mi (7,583.75 km) |
| Sofia to Rutland (Vermont) | 4,549.12 mi (7,321.10 km) |
| Sofia to Sabana Grande (Puerto Rico) | 5,393.34 mi (8,679.74 km) |
| Sofia to Sachse (Texas) | 5,974.17 mi (9,614.49 km) |
| Sofia to Saco (Maine) | 4,450.37 mi (7,162.18 km) |
| Sofia to Sacramento (California) | 6,403.49 mi (10,305.43 km) |
