| Isabela to Octeville | 4,156.34 mi (6,688.98 km) |
| Isabela to Oignies | 4,366.11 mi (7,026.57 km) |
| Isabela to Oissel | 4,276.81 mi (6,882.86 km) |
| Isabela to Olivet | 4,307.86 mi (6,932.83 km) |
| Isabela to Ollioules | 4,499.06 mi (7,240.54 km) |
| Isabela to Olonne-sur-Mer | 4,129.98 mi (6,646.55 km) |
| Isabela to Oloron-Sainte-Marie | 4,173.90 mi (6,717.25 km) |
| Isabela to Onet Village | 4,335.03 mi (6,976.56 km) |
| Isabela to Onnaing | 4,392.40 mi (7,068.89 km) |
| Isabela to Orange | 4,444.85 mi (7,153.30 km) |
| Isabela to Orchies | 4,377.13 mi (7,044.31 km) |
| Isabela to Orleans | 4,308.37 mi (6,933.65 km) |
| Isabela to Orly | 4,333.25 mi (6,973.69 km) |
| Isabela to Ormesson-sur-Marne | 4,340.00 mi (6,984.56 km) |
| Isabela to Orsay | 4,323.75 mi (6,958.41 km) |
