| Rockport to Smolyan | 6,360.02 mi (10,235.46 km) |
| Rockport to Sofia | 6,256.46 mi (10,068.80 km) |
| Rockport to Sopot | 6,313.24 mi (10,160.18 km) |
| Rockport to Sozopol | 6,435.00 mi (10,356.13 km) |
| Rockport to Sredets | 6,419.58 mi (10,331.31 km) |
| Rockport to Stamboliyski | 6,328.50 mi (10,184.74 km) |
| Rockport to Stara Zagora | 6,357.41 mi (10,231.26 km) |
| Rockport to Svilengrad | 6,409.23 mi (10,314.66 km) |
| Rockport to Svishtov | 6,291.51 mi (10,125.21 km) |
| Rockport to Targovishte | 6,354.35 mi (10,226.34 km) |
| Rockport to Teteven | 6,282.66 mi (10,110.97 km) |
| Rockport to Troyan | 6,301.32 mi (10,140.99 km) |
| Rockport to Tryavna | 6,331.71 mi (10,189.90 km) |
| Rockport to Tutrakan | 6,318.10 mi (10,167.99 km) |
| Rockport to Varna | 6,404.90 mi (10,307.69 km) |
