| Brent to Octeville | 4,462.61 mi (7,181.88 km) |
| Brent to Oignies | 4,637.50 mi (7,463.34 km) |
| Brent to Oissel | 4,585.11 mi (7,379.02 km) |
| Brent to Olivet | 4,655.41 mi (7,492.17 km) |
| Brent to Ollioules | 4,959.00 mi (7,980.74 km) |
| Brent to Olonne-sur-Mer | 4,525.00 mi (7,282.28 km) |
| Brent to Oloron-Sainte-Marie | 4,658.54 mi (7,497.19 km) |
| Brent to Onet Village | 4,776.25 mi (7,686.64 km) |
| Brent to Onnaing | 4,664.37 mi (7,506.57 km) |
| Brent to Orange | 4,883.13 mi (7,858.64 km) |
| Brent to Orchies | 4,647.67 mi (7,479.71 km) |
| Brent to Orleans | 4,654.82 mi (7,491.21 km) |
| Brent to Orly | 4,654.76 mi (7,491.11 km) |
| Brent to Ormesson-sur-Marne | 4,659.91 mi (7,499.40 km) |
| Brent to Orsay | 4,647.15 mi (7,478.86 km) |
