| Monticello Conte Otto to Smolyan | 711.56 mi (1,145.15 km) |
| Monticello Conte Otto to Sofia | 615.16 mi (990.01 km) |
| Monticello Conte Otto to Sopot | 683.17 mi (1,099.45 km) |
| Monticello Conte Otto to Sozopol | 828.95 mi (1,334.07 km) |
| Monticello Conte Otto to Sredets | 806.82 mi (1,298.45 km) |
| Monticello Conte Otto to Stamboliyski | 687.15 mi (1,105.85 km) |
| Monticello Conte Otto to Stara Zagora | 731.25 mi (1,176.84 km) |
| Monticello Conte Otto to Svilengrad | 775.51 mi (1,248.06 km) |
| Monticello Conte Otto to Svishtov | 689.98 mi (1,110.41 km) |
| Monticello Conte Otto to Targovishte | 756.55 mi (1,217.55 km) |
| Monticello Conte Otto to Teteven | 653.63 mi (1,051.92 km) |
| Monticello Conte Otto to Troyan | 675.75 mi (1,087.52 km) |
| Monticello Conte Otto to Tryavna | 713.33 mi (1,147.99 km) |
| Monticello Conte Otto to Tutrakan | 743.33 mi (1,196.27 km) |
| Monticello Conte Otto to Varna | 821.30 mi (1,321.75 km) |
