| Humble to Smolyan | 6,185.95 mi (9,955.32 km) |
| Humble to Sofia | 6,082.38 mi (9,788.64 km) |
| Humble to Sopot | 6,139.14 mi (9,879.99 km) |
| Humble to Sozopol | 6,260.92 mi (10,075.98 km) |
| Humble to Sredets | 6,245.48 mi (10,051.13 km) |
| Humble to Stamboliyski | 6,154.41 mi (9,904.57 km) |
| Humble to Stara Zagora | 6,183.30 mi (9,951.07 km) |
| Humble to Svilengrad | 6,235.13 mi (10,034.47 km) |
| Humble to Svishtov | 6,117.42 mi (9,845.04 km) |
| Humble to Targovishte | 6,180.28 mi (9,946.19 km) |
| Humble to Teteven | 6,108.56 mi (9,830.78 km) |
| Humble to Troyan | 6,127.21 mi (9,860.80 km) |
| Humble to Tryavna | 6,157.61 mi (9,909.71 km) |
| Humble to Tutrakan | 6,144.06 mi (9,887.91 km) |
| Humble to Varna | 6,230.87 mi (10,027.61 km) |
