| Westmont to Smolyan | 6,714.60 mi (10,806.10 km) |
| Westmont to Sofia | 6,612.43 mi (10,641.68 km) |
| Westmont to Sopot | 6,652.16 mi (10,705.62 km) |
| Westmont to Sozopol | 6,739.09 mi (10,845.52 km) |
| Westmont to Sredets | 6,731.14 mi (10,832.72 km) |
| Westmont to Stamboliyski | 6,677.45 mi (10,746.32 km) |
| Westmont to Stara Zagora | 6,687.91 mi (10,763.16 km) |
| Westmont to Svilengrad | 6,741.88 mi (10,850.00 km) |
| Westmont to Svishtov | 6,609.30 mi (10,636.64 km) |
| Westmont to Targovishte | 6,661.57 mi (10,720.76 km) |
| Westmont to Teteven | 6,623.89 mi (10,660.12 km) |
| Westmont to Troyan | 6,637.37 mi (10,681.82 km) |
| Westmont to Tryavna | 6,658.08 mi (10,715.15 km) |
| Westmont to Tutrakan | 6,613.87 mi (10,644.00 km) |
| Westmont to Varna | 6,695.31 mi (10,775.06 km) |
