| Sugar Land to Popovo | 6,198.01 mi (9,974.73 km) |
| Sugar Land to Provadia | 6,250.13 mi (10,058.61 km) |
| Sugar Land to Radnevo | 6,235.59 mi (10,035.20 km) |
| Sugar Land to Radomir | 6,109.72 mi (9,832.65 km) |
| Sugar Land to Rakitovo | 6,179.20 mi (9,944.46 km) |
| Sugar Land to Rakovski | 6,199.29 mi (9,976.79 km) |
| Sugar Land to Razgrad | 6,199.94 mi (9,977.83 km) |
| Sugar Land to Razlog | 6,159.70 mi (9,913.08 km) |
| Sugar Land to Ruse | 6,165.67 mi (9,922.68 km) |
| Sugar Land to Samokov | 6,142.76 mi (9,885.82 km) |
| Sugar Land to Sandanski | 6,166.61 mi (9,924.20 km) |
| Sugar Land to Sevlievo | 6,171.09 mi (9,931.41 km) |
| Sugar Land to Shumen | 6,227.02 mi (10,021.41 km) |
| Sugar Land to Silistra | 6,199.69 mi (9,977.43 km) |
| Sugar Land to Sliven | 6,232.82 mi (10,030.75 km) |
