| Norwalk to Smolyan | 6,711.03 mi (10,800.36 km) |
| Norwalk to Sofia | 6,608.80 mi (10,635.83 km) |
| Norwalk to Sopot | 6,648.72 mi (10,700.08 km) |
| Norwalk to Sozopol | 6,736.03 mi (10,840.60 km) |
| Norwalk to Sredets | 6,728.00 mi (10,827.68 km) |
| Norwalk to Stamboliyski | 6,673.92 mi (10,740.64 km) |
| Norwalk to Stara Zagora | 6,684.57 mi (10,757.78 km) |
| Norwalk to Svilengrad | 6,738.54 mi (10,844.63 km) |
| Norwalk to Svishtov | 6,606.04 mi (10,631.40 km) |
| Norwalk to Targovishte | 6,658.45 mi (10,715.73 km) |
| Norwalk to Teteven | 6,620.41 mi (10,654.52 km) |
| Norwalk to Troyan | 6,633.95 mi (10,676.31 km) |
| Norwalk to Tryavna | 6,654.77 mi (10,709.81 km) |
| Norwalk to Tutrakan | 6,610.84 mi (10,639.11 km) |
| Norwalk to Varna | 6,692.37 mi (10,770.33 km) |
