| Darien to Octeville | 3,969.08 mi (6,387.62 km) |
| Darien to Oignies | 4,120.67 mi (6,631.58 km) |
| Darien to Oissel | 4,086.13 mi (6,575.98 km) |
| Darien to Olivet | 4,169.51 mi (6,710.17 km) |
| Darien to Ollioules | 4,507.25 mi (7,253.72 km) |
| Darien to Olonne-sur-Mer | 4,066.59 mi (6,544.54 km) |
| Darien to Oloron-Sainte-Marie | 4,233.54 mi (6,813.23 km) |
| Darien to Onet Village | 4,325.24 mi (6,960.80 km) |
| Darien to Onnaing | 4,146.47 mi (6,673.10 km) |
| Darien to Orange | 4,425.43 mi (7,122.04 km) |
| Darien to Orchies | 4,130.00 mi (6,646.59 km) |
| Darien to Orleans | 4,168.47 mi (6,708.51 km) |
| Darien to Orly | 4,157.84 mi (6,691.40 km) |
| Darien to Ormesson-sur-Marne | 4,162.06 mi (6,698.19 km) |
| Darien to Orsay | 4,151.41 mi (6,681.04 km) |
