| Bombarral to Smolyan | 1,776.42 mi (2,858.88 km) |
| Bombarral to Sofia | 1,700.23 mi (2,736.25 km) |
| Bombarral to Sopot | 1,772.44 mi (2,852.46 km) |
| Bombarral to Sozopol | 1,923.46 mi (3,095.51 km) |
| Bombarral to Sredets | 1,898.56 mi (3,055.44 km) |
| Bombarral to Stamboliyski | 1,764.20 mi (2,839.20 km) |
| Bombarral to Stara Zagora | 1,819.28 mi (2,927.85 km) |
| Bombarral to Svilengrad | 1,851.95 mi (2,980.43 km) |
| Bombarral to Svishtov | 1,798.94 mi (2,895.11 km) |
| Bombarral to Targovishte | 1,862.10 mi (2,996.76 km) |
| Bombarral to Teteven | 1,746.82 mi (2,811.24 km) |
| Bombarral to Troyan | 1,769.70 mi (2,848.05 km) |
| Bombarral to Tryavna | 1,809.35 mi (2,911.86 km) |
| Bombarral to Tutrakan | 1,860.80 mi (2,994.67 km) |
| Bombarral to Varna | 1,929.21 mi (3,104.76 km) |
