| Smolyan to Reinosa | 1,469.89 mi (2,365.57 km) |
| Smolyan to Requena | 1,357.52 mi (2,184.72 km) |
| Smolyan to Reus | 1,219.81 mi (1,963.09 km) |
| Smolyan to Rianxo | 1,708.10 mi (2,748.92 km) |
| Smolyan to Ribadeo | 1,611.15 mi (2,592.89 km) |
| Smolyan to Rincon de la Victoria | 1,581.04 mi (2,544.44 km) |
| Smolyan to Ripoll | 1,155.17 mi (1,859.07 km) |
| Smolyan to Ripollet | 1,162.49 mi (1,870.85 km) |
| Smolyan to Rojales | 1,365.15 mi (2,196.99 km) |
| Smolyan to Ronda | 1,626.04 mi (2,616.87 km) |
| Smolyan to Roquetas de Mar | 1,493.76 mi (2,403.97 km) |
| Smolyan to Rosas | 1,104.61 mi (1,777.70 km) |
| Smolyan to Rubi | 1,168.93 mi (1,881.21 km) |
| Smolyan to Rute | 1,570.79 mi (2,527.94 km) |
| Smolyan to Sabadell | 1,164.57 mi (1,874.19 km) |
