| Quarteira to Smolyan | 1,769.76 mi (2,848.16 km) |
| Quarteira to Sofia | 1,700.79 mi (2,737.15 km) |
| Quarteira to Sopot | 1,772.76 mi (2,852.97 km) |
| Quarteira to Sozopol | 1,922.89 mi (3,094.59 km) |
| Quarteira to Sredets | 1,897.45 mi (3,053.65 km) |
| Quarteira to Stamboliyski | 1,761.10 mi (2,834.21 km) |
| Quarteira to Stara Zagora | 1,818.33 mi (2,926.33 km) |
| Quarteira to Svilengrad | 1,846.93 mi (2,972.34 km) |
| Quarteira to Svishtov | 1,805.56 mi (2,905.76 km) |
| Quarteira to Targovishte | 1,866.44 mi (3,003.75 km) |
| Quarteira to Teteven | 1,748.87 mi (2,814.53 km) |
| Quarteira to Troyan | 1,771.54 mi (2,851.02 km) |
| Quarteira to Tryavna | 1,811.15 mi (2,914.77 km) |
| Quarteira to Tutrakan | 1,870.14 mi (3,009.69 km) |
| Quarteira to Varna | 1,933.53 mi (3,111.71 km) |
