| Maardu to Smolyan | 1,236.49 mi (1,989.93 km) |
| Maardu to Sofia | 1,161.47 mi (1,869.20 km) |
| Maardu to Sopot | 1,162.76 mi (1,871.29 km) |
| Maardu to Sozopol | 1,184.37 mi (1,906.05 km) |
| Maardu to Sredets | 1,187.10 mi (1,910.45 km) |
| Maardu to Stamboliyski | 1,198.59 mi (1,928.94 km) |
| Maardu to Stara Zagora | 1,177.99 mi (1,895.79 km) |
| Maardu to Svilengrad | 1,224.79 mi (1,971.11 km) |
| Maardu to Svishtov | 1,096.01 mi (1,763.85 km) |
| Maardu to Targovishte | 1,123.21 mi (1,807.63 km) |
| Maardu to Teteven | 1,144.72 mi (1,842.25 km) |
| Maardu to Troyan | 1,146.66 mi (1,845.37 km) |
| Maardu to Tryavna | 1,147.91 mi (1,847.38 km) |
| Maardu to Tutrakan | 1,068.10 mi (1,718.93 km) |
| Maardu to Varna | 1,130.24 mi (1,818.94 km) |
