| Conroe to Popovo | 6,152.67 mi (9,901.76 km) |
| Conroe to Provadia | 6,204.59 mi (9,985.32 km) |
| Conroe to Radnevo | 6,190.64 mi (9,962.87 km) |
| Conroe to Radomir | 6,065.33 mi (9,761.20 km) |
| Conroe to Rakitovo | 6,134.76 mi (9,872.94 km) |
| Conroe to Rakovski | 6,154.55 mi (9,904.79 km) |
| Conroe to Razgrad | 6,154.48 mi (9,904.68 km) |
| Conroe to Razlog | 6,115.43 mi (9,841.83 km) |
| Conroe to Ruse | 6,120.24 mi (9,849.57 km) |
| Conroe to Samokov | 6,098.31 mi (9,814.29 km) |
| Conroe to Sandanski | 6,122.49 mi (9,853.19 km) |
| Conroe to Sevlievo | 6,126.09 mi (9,858.98 km) |
| Conroe to Shumen | 6,181.55 mi (9,948.25 km) |
| Conroe to Silistra | 6,153.91 mi (9,903.76 km) |
| Conroe to Sliven | 6,187.66 mi (9,958.08 km) |
