| Mendrisio to Smolyan | 836.96 mi (1,346.96 km) |
| Mendrisio to Sofia | 741.40 mi (1,193.18 km) |
| Mendrisio to Sopot | 809.71 mi (1,303.10 km) |
| Mendrisio to Sozopol | 955.68 mi (1,538.02 km) |
| Mendrisio to Sredets | 933.52 mi (1,502.36 km) |
| Mendrisio to Stamboliyski | 813.19 mi (1,308.70 km) |
| Mendrisio to Stara Zagora | 857.82 mi (1,380.54 km) |
| Mendrisio to Svilengrad | 901.74 mi (1,451.22 km) |
| Mendrisio to Svishtov | 816.59 mi (1,314.17 km) |
| Mendrisio to Targovishte | 883.20 mi (1,421.37 km) |
| Mendrisio to Teteven | 780.25 mi (1,255.69 km) |
| Mendrisio to Troyan | 802.41 mi (1,291.35 km) |
| Mendrisio to Tryavna | 840.04 mi (1,351.91 km) |
| Mendrisio to Tutrakan | 869.39 mi (1,399.15 km) |
| Mendrisio to Varna | 947.82 mi (1,525.36 km) |
