| Helsinge to Smolyan | 1,144.48 mi (1,841.86 km) |
| Helsinge to Sofia | 1,045.01 mi (1,681.78 km) |
| Helsinge to Sopot | 1,079.33 mi (1,737.01 km) |
| Helsinge to Sozopol | 1,166.13 mi (1,876.70 km) |
| Helsinge to Sredets | 1,157.13 mi (1,862.21 km) |
| Helsinge to Stamboliyski | 1,106.47 mi (1,780.69 km) |
| Helsinge to Stara Zagora | 1,113.69 mi (1,792.31 km) |
| Helsinge to Svilengrad | 1,167.58 mi (1,879.05 km) |
| Helsinge to Svishtov | 1,034.69 mi (1,665.17 km) |
| Helsinge to Targovishte | 1,087.68 mi (1,750.44 km) |
| Helsinge to Teteven | 1,051.87 mi (1,692.83 km) |
| Helsinge to Troyan | 1,064.20 mi (1,712.66 km) |
| Helsinge to Tryavna | 1,083.68 mi (1,744.02 km) |
| Helsinge to Tutrakan | 1,041.45 mi (1,676.05 km) |
| Helsinge to Varna | 1,124.95 mi (1,810.43 km) |
