| Renfrew to Smolyan | 1,633.06 mi (2,628.16 km) |
| Renfrew to Sofia | 1,528.78 mi (2,460.33 km) |
| Renfrew to Sopot | 1,581.57 mi (2,545.30 km) |
| Renfrew to Sozopol | 1,699.49 mi (2,735.06 km) |
| Renfrew to Sredets | 1,684.50 mi (2,710.94 km) |
| Renfrew to Stamboliyski | 1,599.50 mi (2,574.15 km) |
| Renfrew to Stara Zagora | 1,624.43 mi (2,614.27 km) |
| Renfrew to Svilengrad | 1,677.08 mi (2,698.99 km) |
| Renfrew to Svishtov | 1,556.44 mi (2,504.85 km) |
| Renfrew to Targovishte | 1,618.80 mi (2,605.20 km) |
| Renfrew to Teteven | 1,551.24 mi (2,496.48 km) |
| Renfrew to Troyan | 1,568.94 mi (2,524.97 km) |
| Renfrew to Tryavna | 1,597.88 mi (2,571.53 km) |
| Renfrew to Tutrakan | 1,582.50 mi (2,546.79 km) |
| Renfrew to Varna | 1,669.33 mi (2,686.52 km) |
