| Hilton Head Island to Popovo | 5,478.01 mi (8,816.01 km) |
| Hilton Head Island to Provadia | 5,534.11 mi (8,906.29 km) |
| Hilton Head Island to Radnevo | 5,506.61 mi (8,862.03 km) |
| Hilton Head Island to Radomir | 5,370.34 mi (8,642.72 km) |
| Hilton Head Island to Rakitovo | 5,440.26 mi (8,755.26 km) |
| Hilton Head Island to Rakovski | 5,466.17 mi (8,796.94 km) |
| Hilton Head Island to Razgrad | 5,482.52 mi (8,823.26 km) |
| Hilton Head Island to Razlog | 5,417.57 mi (8,718.73 km) |
| Hilton Head Island to Ruse | 5,448.00 mi (8,767.71 km) |
| Hilton Head Island to Samokov | 5,404.24 mi (8,697.29 km) |
| Hilton Head Island to Sandanski | 5,421.49 mi (8,725.05 km) |
| Hilton Head Island to Sevlievo | 5,443.97 mi (8,761.22 km) |
| Hilton Head Island to Shumen | 5,509.55 mi (8,866.77 km) |
| Hilton Head Island to Silistra | 5,489.88 mi (8,835.11 km) |
| Hilton Head Island to Sliven | 5,508.34 mi (8,864.82 km) |
