| Sofia to Reidsville (North Carolina) | 5,141.69 mi (8,274.75 km) |
| Sofia to Reisterstown (Maryland) | 4,882.81 mi (7,858.13 km) |
| Sofia to Rendon (Texas) | 6,019.38 mi (9,687.26 km) |
| Sofia to Reno (Nevada) | 6,304.73 mi (10,146.49 km) |
| Sofia to Renton (Washington) | 5,860.18 mi (9,431.05 km) |
| Sofia to Republic (Missouri) | 5,639.93 mi (9,076.60 km) |
| Sofia to Reston (Virginia) | 4,927.10 mi (7,929.40 km) |
| Sofia to Revere (Massachusetts) | 4,517.97 mi (7,270.96 km) |
| Sofia to Rexburg (Idaho) | 5,846.32 mi (9,408.75 km) |
| Sofia to Reynoldsburg (Ohio) | 5,098.66 mi (8,205.51 km) |
| Sofia to Rialto (California) | 6,577.48 mi (10,585.43 km) |
| Sofia to Richardson (Texas) | 5,979.03 mi (9,622.31 km) |
| Sofia to Richfield (Minnesota) | 5,237.69 mi (8,429.25 km) |
| Sofia to Richfield (Wisconsin) | 5,145.52 mi (8,280.92 km) |
| Sofia to Richland (Washington) | 5,875.42 mi (9,455.58 km) |
