| Bulancak to Orbetello | 1,392.22 mi (2,240.56 km) |
| Bulancak to Oria | 1,076.72 mi (1,732.81 km) |
| Bulancak to Oristano | 1,553.35 mi (2,499.88 km) |
| Bulancak to Orta Nova | 1,169.08 mi (1,881.45 km) |
| Bulancak to Orte | 1,332.46 mi (2,144.39 km) |
| Bulancak to Ortona | 1,230.46 mi (1,980.24 km) |
| Bulancak to Orvieto | 1,345.23 mi (2,164.94 km) |
| Bulancak to Orzinuovi | 1,451.17 mi (2,335.44 km) |
| Bulancak to Osimo | 1,274.04 mi (2,050.38 km) |
| Bulancak to Ospitaletto | 1,444.85 mi (2,325.26 km) |
| Bulancak to Ostuni | 1,077.09 mi (1,733.41 km) |
| Bulancak to Ottaviano | 1,236.96 mi (1,990.69 km) |
| Bulancak to Ovada | 1,513.36 mi (2,435.51 km) |
| Bulancak to Ozieri | 1,522.78 mi (2,450.68 km) |
| Bulancak to Paceco | 1,380.09 mi (2,221.04 km) |
