| Ocana to Smolyan | 1,473.15 mi (2,370.80 km) |
| Ocana to Sofia | 1,398.74 mi (2,251.06 km) |
| Ocana to Sopot | 1,470.95 mi (2,367.27 km) |
| Ocana to Sozopol | 1,621.84 mi (2,610.10 km) |
| Ocana to Sredets | 1,596.76 mi (2,569.74 km) |
| Ocana to Stamboliyski | 1,461.74 mi (2,352.45 km) |
| Ocana to Stara Zagora | 1,517.46 mi (2,442.12 km) |
| Ocana to Svilengrad | 1,549.09 mi (2,493.03 km) |
| Ocana to Svishtov | 1,499.68 mi (2,413.50 km) |
| Ocana to Targovishte | 1,562.04 mi (2,513.87 km) |
| Ocana to Teteven | 1,445.86 mi (2,326.89 km) |
| Ocana to Troyan | 1,468.69 mi (2,363.63 km) |
| Ocana to Tryavna | 1,508.37 mi (2,427.48 km) |
| Ocana to Tutrakan | 1,562.72 mi (2,514.95 km) |
| Ocana to Varna | 1,629.20 mi (2,621.95 km) |
