| Gloucester Point to Octeville | 3,690.53 mi (5,939.34 km) |
| Gloucester Point to Oignies | 3,867.98 mi (6,224.91 km) |
| Gloucester Point to Oissel | 3,813.39 mi (6,137.05 km) |
| Gloucester Point to Olivet | 3,882.39 mi (6,248.11 km) |
| Gloucester Point to Ollioules | 4,184.70 mi (6,734.63 km) |
| Gloucester Point to Olonne-sur-Mer | 3,750.78 mi (6,036.30 km) |
| Gloucester Point to Oloron-Sainte-Marie | 3,884.89 mi (6,252.12 km) |
| Gloucester Point to Onet Village | 4,001.94 mi (6,440.51 km) |
| Gloucester Point to Onnaing | 3,894.94 mi (6,268.30 km) |
| Gloucester Point to Orange | 4,108.83 mi (6,612.53 km) |
| Gloucester Point to Orchies | 3,878.25 mi (6,241.44 km) |
| Gloucester Point to Orleans | 3,881.83 mi (6,247.21 km) |
| Gloucester Point to Orly | 3,882.71 mi (6,248.61 km) |
| Gloucester Point to Ormesson-sur-Marne | 3,887.94 mi (6,257.04 km) |
| Gloucester Point to Orsay | 3,874.99 mi (6,236.19 km) |
