| Lake Charles to Smolyan | 6,094.63 mi (9,808.37 km) |
| Lake Charles to Sofia | 5,991.35 mi (9,642.14 km) |
| Lake Charles to Sopot | 6,049.05 mi (9,735.00 km) |
| Lake Charles to Sozopol | 6,172.74 mi (9,934.06 km) |
| Lake Charles to Sredets | 6,156.85 mi (9,908.49 km) |
| Lake Charles to Stamboliyski | 6,063.59 mi (9,758.40 km) |
| Lake Charles to Stara Zagora | 6,093.62 mi (9,806.73 km) |
| Lake Charles to Svilengrad | 6,145.10 mi (9,889.58 km) |
| Lake Charles to Svishtov | 6,028.85 mi (9,702.49 km) |
| Lake Charles to Targovishte | 6,092.19 mi (9,804.43 km) |
| Lake Charles to Teteven | 6,018.43 mi (9,685.72 km) |
| Lake Charles to Troyan | 6,037.36 mi (9,716.19 km) |
| Lake Charles to Tryavna | 6,068.29 mi (9,765.98 km) |
| Lake Charles to Tutrakan | 6,056.90 mi (9,747.64 km) |
| Lake Charles to Varna | 6,143.74 mi (9,887.39 km) |
