| Lubbock to Smolyan | 6,236.38 mi (10,036.48 km) |
| Lubbock to Sofia | 6,132.07 mi (9,868.62 km) |
| Lubbock to Sopot | 6,183.30 mi (9,951.06 km) |
| Lubbock to Sozopol | 6,293.93 mi (10,129.10 km) |
| Lubbock to Sredets | 6,281.01 mi (10,108.30 km) |
| Lubbock to Stamboliyski | 6,202.41 mi (9,981.82 km) |
| Lubbock to Stara Zagora | 6,224.94 mi (10,018.07 km) |
| Lubbock to Svilengrad | 6,278.17 mi (10,103.74 km) |
| Lubbock to Svishtov | 6,153.63 mi (9,903.31 km) |
| Lubbock to Targovishte | 6,213.42 mi (9,999.54 km) |
| Lubbock to Teteven | 6,153.19 mi (9,902.61 km) |
| Lubbock to Troyan | 6,170.19 mi (9,929.95 km) |
| Lubbock to Tryavna | 6,197.43 mi (9,973.80 km) |
| Lubbock to Tutrakan | 6,172.61 mi (9,933.86 km) |
| Lubbock to Varna | 6,258.56 mi (10,072.18 km) |
