| Smethwick to Smolyan | 1,452.09 mi (2,336.92 km) |
| Smethwick to Sofia | 1,348.83 mi (2,170.73 km) |
| Smethwick to Sopot | 1,407.43 mi (2,265.05 km) |
| Smethwick to Sozopol | 1,536.20 mi (2,472.28 km) |
| Smethwick to Sredets | 1,518.72 mi (2,444.15 km) |
| Smethwick to Stamboliyski | 1,421.16 mi (2,287.13 km) |
| Smethwick to Stara Zagora | 1,452.72 mi (2,337.92 km) |
| Smethwick to Svilengrad | 1,503.50 mi (2,419.66 km) |
| Smethwick to Svishtov | 1,391.46 mi (2,239.34 km) |
| Smethwick to Targovishte | 1,456.45 mi (2,343.93 km) |
| Smethwick to Teteven | 1,376.78 mi (2,215.71 km) |
| Smethwick to Troyan | 1,396.20 mi (2,246.96 km) |
| Smethwick to Tryavna | 1,428.36 mi (2,298.73 km) |
| Smethwick to Tutrakan | 1,426.01 mi (2,294.94 km) |
| Smethwick to Varna | 1,512.27 mi (2,433.76 km) |
