| Union Hill-Novelty Hill to Smolyan | 5,942.35 mi (9,563.29 km) |
| Union Hill-Novelty Hill to Sofia | 5,844.42 mi (9,405.68 km) |
| Union Hill-Novelty Hill to Sopot | 5,874.84 mi (9,454.64 km) |
| Union Hill-Novelty Hill to Sozopol | 5,943.27 mi (9,564.77 km) |
| Union Hill-Novelty Hill to Sredets | 5,938.85 mi (9,557.66 km) |
| Union Hill-Novelty Hill to Stamboliyski | 5,903.88 mi (9,501.38 km) |
| Union Hill-Novelty Hill to Stara Zagora | 5,905.53 mi (9,504.03 km) |
| Union Hill-Novelty Hill to Svilengrad | 5,958.63 mi (9,589.48 km) |
| Union Hill-Novelty Hill to Svishtov | 5,823.84 mi (9,372.56 km) |
| Union Hill-Novelty Hill to Targovishte | 5,869.67 mi (9,446.32 km) |
| Union Hill-Novelty Hill to Teteven | 5,848.60 mi (9,412.42 km) |
| Union Hill-Novelty Hill to Troyan | 5,859.24 mi (9,429.53 km) |
| Union Hill-Novelty Hill to Tryavna | 5,874.84 mi (9,454.64 km) |
| Union Hill-Novelty Hill to Tutrakan | 5,818.52 mi (9,364.00 km) |
| Union Hill-Novelty Hill to Varna | 5,895.00 mi (9,487.08 km) |
