| Lake Jackson to Smolyan | 6,242.74 mi (10,046.71 km) |
| Lake Jackson to Sofia | 6,139.27 mi (9,880.21 km) |
| Lake Jackson to Sopot | 6,196.40 mi (9,972.15 km) |
| Lake Jackson to Sozopol | 6,318.91 mi (10,169.30 km) |
| Lake Jackson to Sredets | 6,303.30 mi (10,144.19 km) |
| Lake Jackson to Stamboliyski | 6,211.40 mi (9,996.27 km) |
| Lake Jackson to Stara Zagora | 6,240.73 mi (10,043.48 km) |
| Lake Jackson to Svilengrad | 6,292.43 mi (10,126.68 km) |
| Lake Jackson to Svishtov | 6,175.26 mi (9,938.12 km) |
| Lake Jackson to Targovishte | 6,238.29 mi (10,039.56 km) |
| Lake Jackson to Teteven | 6,165.81 mi (9,922.91 km) |
| Lake Jackson to Troyan | 6,184.57 mi (9,953.11 km) |
| Lake Jackson to Tryavna | 6,215.17 mi (10,002.35 km) |
| Lake Jackson to Tutrakan | 6,202.41 mi (9,981.81 km) |
| Lake Jackson to Varna | 6,289.23 mi (10,121.54 km) |
