| Quaregnon to Sofia | 1,063.16 mi (1,710.99 km) |
| Quaregnon to Sopot | 1,123.32 mi (1,807.81 km) |
| Quaregnon to Sozopol | 1,255.53 mi (2,020.59 km) |
| Quaregnon to Sredets | 1,237.15 mi (1,991.00 km) |
| Quaregnon to Stamboliyski | 1,135.73 mi (1,827.78 km) |
| Quaregnon to Stara Zagora | 1,169.25 mi (1,881.72 km) |
| Quaregnon to Svilengrad | 1,219.26 mi (1,962.21 km) |
| Quaregnon to Svishtov | 1,110.79 mi (1,787.64 km) |
| Quaregnon to Targovishte | 1,176.54 mi (1,893.46 km) |
| Quaregnon to Teteven | 1,092.66 mi (1,758.47 km) |
| Quaregnon to Troyan | 1,112.58 mi (1,790.53 km) |
| Quaregnon to Tryavna | 1,145.76 mi (1,843.92 km) |
| Quaregnon to Tutrakan | 1,148.89 mi (1,848.95 km) |
| Quaregnon to Varna | 1,234.37 mi (1,986.53 km) |
| Quaregnon to Veliki Preslav | 1,189.55 mi (1,914.39 km) |
