| South Charleston to Popovo | 5,217.72 mi (8,397.11 km) |
| South Charleston to Provadia | 5,271.40 mi (8,483.50 km) |
| South Charleston to Radnevo | 5,252.26 mi (8,452.70 km) |
| South Charleston to Radomir | 5,122.83 mi (8,244.40 km) |
| South Charleston to Rakitovo | 5,192.57 mi (8,356.64 km) |
| South Charleston to Rakovski | 5,214.53 mi (8,391.97 km) |
| South Charleston to Razgrad | 5,220.59 mi (8,401.72 km) |
| South Charleston to Razlog | 5,172.08 mi (8,323.65 km) |
| South Charleston to Ruse | 5,186.15 mi (8,346.31 km) |
| South Charleston to Samokov | 5,156.20 mi (8,298.10 km) |
| South Charleston to Sandanski | 5,178.13 mi (8,333.39 km) |
| South Charleston to Sevlievo | 5,188.26 mi (8,349.70 km) |
| South Charleston to Shumen | 5,247.71 mi (8,445.37 km) |
| South Charleston to Silistra | 5,223.19 mi (8,405.91 km) |
| South Charleston to Sliven | 5,251.02 mi (8,450.71 km) |
