| Binghamton to Orbetello | 4,236.80 mi (6,818.47 km) |
| Binghamton to Oria | 4,586.90 mi (7,381.89 km) |
| Binghamton to Oristano | 4,215.41 mi (6,784.05 km) |
| Binghamton to Orta Nova | 4,471.87 mi (7,196.78 km) |
| Binghamton to Orte | 4,286.41 mi (6,898.31 km) |
| Binghamton to Ortona | 4,376.39 mi (7,043.12 km) |
| Binghamton to Orvieto | 4,264.96 mi (6,863.80 km) |
| Binghamton to Orzinuovi | 4,076.02 mi (6,559.72 km) |
| Binghamton to Osimo | 4,294.55 mi (6,911.41 km) |
| Binghamton to Ospitaletto | 4,076.47 mi (6,560.44 km) |
| Binghamton to Ostuni | 4,575.29 mi (7,363.22 km) |
| Binghamton to Ottaviano | 4,437.97 mi (7,142.22 km) |
| Binghamton to Ovada | 4,048.12 mi (6,514.82 km) |
| Binghamton to Ozieri | 4,208.67 mi (6,773.19 km) |
| Binghamton to Paceco | 4,466.05 mi (7,187.41 km) |
