| Greeley to Octeville | 4,667.12 mi (7,511.01 km) |
| Greeley to Oignies | 4,793.62 mi (7,714.58 km) |
| Greeley to Oissel | 4,776.46 mi (7,686.97 km) |
| Greeley to Olivet | 4,869.31 mi (7,836.39 km) |
| Greeley to Ollioules | 5,227.59 mi (8,412.99 km) |
| Greeley to Olonne-sur-Mer | 4,791.19 mi (7,710.67 km) |
| Greeley to Oloron-Sainte-Marie | 4,979.21 mi (8,013.27 km) |
| Greeley to Onet Village | 5,049.96 mi (8,127.12 km) |
| Greeley to Onnaing | 4,817.74 mi (7,753.41 km) |
| Greeley to Orange | 5,142.79 mi (8,276.53 km) |
| Greeley to Orchies | 4,801.90 mi (7,727.92 km) |
| Greeley to Orleans | 4,867.92 mi (7,834.16 km) |
| Greeley to Orly | 4,848.28 mi (7,802.55 km) |
| Greeley to Ormesson-sur-Marne | 4,851.56 mi (7,807.83 km) |
| Greeley to Orsay | 4,843.04 mi (7,794.12 km) |
