| Radzyn Podlaski to Popovo | 606.26 mi (975.68 km) |
| Radzyn Podlaski to Provadia | 634.83 mi (1,021.66 km) |
| Radzyn Podlaski to Radnevo | 673.28 mi (1,083.54 km) |
| Radzyn Podlaski to Radomir | 638.11 mi (1,026.93 km) |
| Radzyn Podlaski to Rakitovo | 680.54 mi (1,095.22 km) |
| Radzyn Podlaski to Rakovski | 665.11 mi (1,070.38 km) |
| Radzyn Podlaski to Razgrad | 597.85 mi (962.15 km) |
| Radzyn Podlaski to Razlog | 685.13 mi (1,102.62 km) |
| Radzyn Podlaski to Ruse | 571.10 mi (919.10 km) |
| Radzyn Podlaski to Samokov | 654.09 mi (1,052.66 km) |
| Radzyn Podlaski to Sandanski | 706.45 mi (1,136.92 km) |
| Radzyn Podlaski to Sevlievo | 616.06 mi (991.45 km) |
| Radzyn Podlaski to Shumen | 620.43 mi (998.48 km) |
| Radzyn Podlaski to Silistra | 571.16 mi (919.19 km) |
| Radzyn Podlaski to Sliven | 652.13 mi (1,049.50 km) |
