| Dubendorf to Smolyan | 886.86 mi (1,427.26 km) |
| Dubendorf to Sofia | 786.95 mi (1,266.47 km) |
| Dubendorf to Sopot | 851.78 mi (1,370.81 km) |
| Dubendorf to Sozopol | 992.42 mi (1,597.15 km) |
| Dubendorf to Sredets | 971.83 mi (1,564.00 km) |
| Dubendorf to Stamboliyski | 859.68 mi (1,383.53 km) |
| Dubendorf to Stara Zagora | 899.22 mi (1,447.16 km) |
| Dubendorf to Svilengrad | 946.37 mi (1,523.03 km) |
| Dubendorf to Svishtov | 849.63 mi (1,367.34 km) |
| Dubendorf to Targovishte | 916.45 mi (1,474.89 km) |
| Dubendorf to Teteven | 821.50 mi (1,322.07 km) |
| Dubendorf to Troyan | 842.77 mi (1,356.30 km) |
| Dubendorf to Tryavna | 878.60 mi (1,413.97 km) |
| Dubendorf to Tutrakan | 896.43 mi (1,442.67 km) |
| Dubendorf to Varna | 978.61 mi (1,574.92 km) |
