| Columbine to Smolyan | 6,003.69 mi (9,662.01 km) |
| Columbine to Sofia | 5,899.86 mi (9,494.91 km) |
| Columbine to Sopot | 5,945.88 mi (9,568.97 km) |
| Columbine to Sozopol | 6,046.11 mi (9,730.27 km) |
| Columbine to Sredets | 6,035.39 mi (9,713.02 km) |
| Columbine to Stamboliyski | 5,968.03 mi (9,604.61 km) |
| Columbine to Stara Zagora | 5,984.98 mi (9,631.89 km) |
| Columbine to Svilengrad | 6,038.84 mi (9,718.57 km) |
| Columbine to Svishtov | 5,909.88 mi (9,511.03 km) |
| Columbine to Targovishte | 5,966.52 mi (9,602.19 km) |
| Columbine to Teteven | 5,916.48 mi (9,521.66 km) |
| Columbine to Troyan | 5,931.91 mi (9,546.48 km) |
| Columbine to Tryavna | 5,956.23 mi (9,585.63 km) |
| Columbine to Tutrakan | 5,922.35 mi (9,531.09 km) |
| Columbine to Varna | 6,006.73 mi (9,666.89 km) |
