| Signal Hill to Octeville | 5,487.98 mi (8,832.05 km) |
| Signal Hill to Oignies | 5,600.65 mi (9,013.37 km) |
| Signal Hill to Oissel | 5,592.59 mi (9,000.40 km) |
| Signal Hill to Olivet | 5,689.38 mi (9,156.17 km) |
| Signal Hill to Ollioules | 6,055.18 mi (9,744.87 km) |
| Signal Hill to Olonne-sur-Mer | 5,623.62 mi (9,050.34 km) |
| Signal Hill to Oloron-Sainte-Marie | 5,819.88 mi (9,366.19 km) |
| Signal Hill to Onet Village | 5,880.79 mi (9,464.22 km) |
| Signal Hill to Onnaing | 5,623.65 mi (9,050.39 km) |
| Signal Hill to Orange | 5,969.50 mi (9,606.98 km) |
| Signal Hill to Orchies | 5,608.30 mi (9,025.69 km) |
| Signal Hill to Orleans | 5,687.83 mi (9,153.67 km) |
| Signal Hill to Orly | 5,663.83 mi (9,115.05 km) |
| Signal Hill to Ormesson-sur-Marne | 5,666.61 mi (9,119.52 km) |
| Signal Hill to Orsay | 5,659.24 mi (9,107.67 km) |
