| Tuscaloosa to Smolyan | 5,713.90 mi (9,195.63 km) |
| Tuscaloosa to Sofia | 5,611.02 mi (9,030.07 km) |
| Tuscaloosa to Sopot | 5,669.87 mi (9,124.78 km) |
| Tuscaloosa to Sozopol | 5,795.98 mi (9,327.73 km) |
| Tuscaloosa to Sredets | 5,779.50 mi (9,301.20 km) |
| Tuscaloosa to Stamboliyski | 5,683.48 mi (9,146.68 km) |
| Tuscaloosa to Stara Zagora | 5,714.93 mi (9,197.30 km) |
| Tuscaloosa to Svilengrad | 5,765.95 mi (9,279.40 km) |
| Tuscaloosa to Svishtov | 5,651.68 mi (9,095.50 km) |
| Tuscaloosa to Targovishte | 5,715.62 mi (9,198.40 km) |
| Tuscaloosa to Teteven | 5,639.22 mi (9,075.45 km) |
| Tuscaloosa to Troyan | 5,658.50 mi (9,106.48 km) |
| Tuscaloosa to Tryavna | 5,690.12 mi (9,157.36 km) |
| Tuscaloosa to Tutrakan | 5,681.64 mi (9,143.71 km) |
| Tuscaloosa to Varna | 5,768.45 mi (9,283.42 km) |
