| Sliven to Pyskowice | 645.43 mi (1,038.73 km) |
| Sliven to Raciborz | 639.88 mi (1,029.78 km) |
| Sliven to Radom | 649.53 mi (1,045.32 km) |
| Sliven to Radomsko | 663.56 mi (1,067.89 km) |
| Sliven to Radzionkow Nowy | 638.38 mi (1,027.37 km) |
| Sliven to Radzymin | 713.65 mi (1,148.51 km) |
| Sliven to Radzyn Podlaski | 652.13 mi (1,049.50 km) |
| Sliven to Rawa Mazowiecka | 688.76 mi (1,108.45 km) |
| Sliven to Rawicz | 759.33 mi (1,222.02 km) |
| Sliven to Reda | 900.09 mi (1,448.55 km) |
| Sliven to Rogozno | 818.22 mi (1,316.80 km) |
| Sliven to Ropczyce | 556.17 mi (895.07 km) |
| Sliven to Ruda Slaska | 632.48 mi (1,017.88 km) |
| Sliven to Rumia | 896.10 mi (1,442.14 km) |
| Sliven to Rury | 617.69 mi (994.07 km) |
