| Lufkin to Smolyan | 6,095.35 mi (9,809.52 km) |
| Lufkin to Sofia | 5,991.68 mi (9,642.67 km) |
| Lufkin to Sopot | 6,048.04 mi (9,733.39 km) |
| Lufkin to Sozopol | 6,169.08 mi (9,928.17 km) |
| Lufkin to Sredets | 6,153.81 mi (9,903.60 km) |
| Lufkin to Stamboliyski | 6,063.62 mi (9,758.45 km) |
| Lufkin to Stara Zagora | 6,092.04 mi (9,804.20 km) |
| Lufkin to Svilengrad | 6,144.00 mi (9,887.81 km) |
| Lufkin to Svishtov | 6,025.74 mi (9,697.49 km) |
| Lufkin to Targovishte | 6,088.41 mi (9,798.34 km) |
| Lufkin to Teteven | 6,017.49 mi (9,684.21 km) |
| Lufkin to Troyan | 6,036.03 mi (9,714.05 km) |
| Lufkin to Tryavna | 6,066.20 mi (9,762.61 km) |
| Lufkin to Tutrakan | 6,051.86 mi (9,739.53 km) |
| Lufkin to Varna | 6,138.65 mi (9,879.20 km) |
