| Uniondale to Octeville | 3,422.02 mi (5,507.20 km) |
| Uniondale to Oignies | 3,596.04 mi (5,787.26 km) |
| Uniondale to Oissel | 3,544.25 mi (5,703.92 km) |
| Uniondale to Olivet | 3,615.74 mi (5,818.97 km) |
| Uniondale to Ollioules | 3,925.32 mi (6,317.20 km) |
| Uniondale to Olonne-sur-Mer | 3,488.98 mi (5,614.97 km) |
| Uniondale to Oloron-Sainte-Marie | 3,630.36 mi (5,842.50 km) |
| Uniondale to Onet Village | 3,742.27 mi (6,022.61 km) |
| Uniondale to Onnaing | 3,622.89 mi (5,830.48 km) |
| Uniondale to Orange | 3,848.08 mi (6,192.89 km) |
| Uniondale to Orchies | 3,606.20 mi (5,803.62 km) |
| Uniondale to Orleans | 3,615.10 mi (5,817.94 km) |
| Uniondale to Orly | 3,614.11 mi (5,816.34 km) |
| Uniondale to Ormesson-sur-Marne | 3,619.19 mi (5,824.53 km) |
| Uniondale to Orsay | 3,606.58 mi (5,804.22 km) |
