| Greenfield to Octeville | 3,916.36 mi (6,302.77 km) |
| Greenfield to Oignies | 4,065.04 mi (6,542.05 km) |
| Greenfield to Oissel | 4,032.57 mi (6,489.79 km) |
| Greenfield to Olivet | 4,117.27 mi (6,626.10 km) |
| Greenfield to Ollioules | 4,458.20 mi (7,174.78 km) |
| Greenfield to Olonne-sur-Mer | 4,017.64 mi (6,465.77 km) |
| Greenfield to Oloron-Sainte-Marie | 4,188.01 mi (6,739.96 km) |
| Greenfield to Onet Village | 4,276.62 mi (6,882.55 km) |
| Greenfield to Onnaing | 4,090.68 mi (6,583.31 km) |
| Greenfield to Orange | 4,375.87 mi (7,042.28 km) |
| Greenfield to Orchies | 4,074.26 mi (6,556.88 km) |
| Greenfield to Orleans | 4,116.19 mi (6,624.36 km) |
| Greenfield to Orly | 4,104.39 mi (6,605.38 km) |
| Greenfield to Ormesson-sur-Marne | 4,108.49 mi (6,611.98 km) |
| Greenfield to Orsay | 4,098.09 mi (6,595.24 km) |
