| Thonon-les-Bains to Smolyan | 961.84 mi (1,547.93 km) |
| Thonon-les-Bains to Sofia | 865.95 mi (1,393.62 km) |
| Thonon-les-Bains to Sopot | 933.93 mi (1,503.01 km) |
| Thonon-les-Bains to Sozopol | 1,079.21 mi (1,736.83 km) |
| Thonon-les-Bains to Sredets | 1,057.30 mi (1,701.56 km) |
| Thonon-les-Bains to Stamboliyski | 937.86 mi (1,509.34 km) |
| Thonon-les-Bains to Stara Zagora | 981.99 mi (1,580.37 km) |
| Thonon-les-Bains to Svilengrad | 1,026.30 mi (1,651.67 km) |
| Thonon-les-Bains to Svishtov | 939.24 mi (1,511.57 km) |
| Thonon-les-Bains to Targovishte | 1,005.98 mi (1,618.97 km) |
| Thonon-les-Bains to Teteven | 904.33 mi (1,455.38 km) |
| Thonon-les-Bains to Troyan | 926.38 mi (1,490.87 km) |
| Thonon-les-Bains to Tryavna | 963.78 mi (1,551.05 km) |
| Thonon-les-Bains to Tutrakan | 990.65 mi (1,594.29 km) |
| Thonon-les-Bains to Varna | 1,070.12 mi (1,722.20 km) |
