| Holtsville to Popovo | 4,760.84 mi (7,661.84 km) |
| Holtsville to Provadia | 4,815.92 mi (7,750.48 km) |
| Holtsville to Radnevo | 4,792.24 mi (7,712.37 km) |
| Holtsville to Radomir | 4,659.25 mi (7,498.33 km) |
| Holtsville to Rakitovo | 4,729.15 mi (7,610.83 km) |
| Holtsville to Rakovski | 4,753.08 mi (7,649.34 km) |
| Holtsville to Razgrad | 4,764.62 mi (7,667.92 km) |
| Holtsville to Razlog | 4,707.57 mi (7,576.11 km) |
| Holtsville to Ruse | 4,730.11 mi (7,612.37 km) |
| Holtsville to Samokov | 4,692.91 mi (7,552.51 km) |
| Holtsville to Sandanski | 4,712.64 mi (7,584.25 km) |
| Holtsville to Sevlievo | 4,728.89 mi (7,610.41 km) |
| Holtsville to Shumen | 4,791.72 mi (7,711.53 km) |
| Holtsville to Silistra | 4,769.95 mi (7,676.49 km) |
| Holtsville to Sliven | 4,792.56 mi (7,712.89 km) |
