| Ondokuzmayis to Smolyan | 588.09 mi (946.43 km) |
| Ondokuzmayis to Sofia | 658.25 mi (1,059.35 km) |
| Ondokuzmayis to Sopot | 586.04 mi (943.14 km) |
| Ondokuzmayis to Sozopol | 435.03 mi (700.12 km) |
| Ondokuzmayis to Sredets | 460.05 mi (740.38 km) |
| Ondokuzmayis to Stamboliyski | 595.73 mi (958.74 km) |
| Ondokuzmayis to Stara Zagora | 539.35 mi (868.01 km) |
| Ondokuzmayis to Svilengrad | 510.25 mi (821.16 km) |
| Ondokuzmayis to Svishtov | 564.94 mi (909.18 km) |
| Ondokuzmayis to Targovishte | 499.34 mi (803.61 km) |
| Ondokuzmayis to Teteven | 611.95 mi (984.84 km) |
| Ondokuzmayis to Troyan | 589.06 mi (948.00 km) |
| Ondokuzmayis to Tryavna | 549.50 mi (884.33 km) |
| Ondokuzmayis to Tutrakan | 510.99 mi (822.36 km) |
| Ondokuzmayis to Varna | 433.20 mi (697.17 km) |
