| Round Lake Beach to Smolyan | 5,285.78 mi (8,506.64 km) |
| Round Lake Beach to Sofia | 5,181.59 mi (8,338.96 km) |
| Round Lake Beach to Sopot | 5,235.04 mi (8,424.99 km) |
| Round Lake Beach to Sozopol | 5,350.61 mi (8,610.98 km) |
| Round Lake Beach to Sredets | 5,336.55 mi (8,588.34 km) |
| Round Lake Beach to Stamboliyski | 5,252.68 mi (8,453.37 km) |
| Round Lake Beach to Stara Zagora | 5,277.78 mi (8,493.77 km) |
| Round Lake Beach to Svilengrad | 5,330.52 mi (8,578.64 km) |
| Round Lake Beach to Svishtov | 5,208.66 mi (8,382.52 km) |
| Round Lake Beach to Targovishte | 5,269.91 mi (8,481.10 km) |
| Round Lake Beach to Teteven | 5,204.70 mi (8,376.16 km) |
| Round Lake Beach to Troyan | 5,222.39 mi (8,404.62 km) |
| Round Lake Beach to Tryavna | 5,250.98 mi (8,450.63 km) |
| Round Lake Beach to Tutrakan | 5,231.15 mi (8,418.72 km) |
| Round Lake Beach to Varna | 5,317.65 mi (8,557.93 km) |
