| Le Locle to Smolyan | 961.72 mi (1,547.74 km) |
| Le Locle to Sofia | 863.74 mi (1,390.05 km) |
| Le Locle to Sopot | 930.26 mi (1,497.10 km) |
| Le Locle to Sozopol | 1,073.31 mi (1,727.33 km) |
| Le Locle to Sredets | 1,052.07 mi (1,693.14 km) |
| Le Locle to Stamboliyski | 936.16 mi (1,506.61 km) |
| Le Locle to Stara Zagora | 978.07 mi (1,574.05 km) |
| Le Locle to Svilengrad | 1,023.86 mi (1,647.74 km) |
| Le Locle to Svishtov | 931.68 mi (1,499.40 km) |
| Le Locle to Targovishte | 998.54 mi (1,607.00 km) |
| Le Locle to Teteven | 900.27 mi (1,448.84 km) |
| Le Locle to Troyan | 921.95 mi (1,483.74 km) |
| Le Locle to Tryavna | 958.59 mi (1,542.71 km) |
| Le Locle to Tutrakan | 980.60 mi (1,578.12 km) |
| Le Locle to Varna | 1,061.66 mi (1,708.57 km) |
