| Green Bay to Octeville | 3,848.35 mi (6,193.32 km) |
| Green Bay to Oignies | 3,993.23 mi (6,426.48 km) |
| Green Bay to Oissel | 3,963.42 mi (6,378.51 km) |
| Green Bay to Olivet | 4,049.77 mi (6,517.47 km) |
| Green Bay to Ollioules | 4,394.59 mi (7,072.41 km) |
| Green Bay to Olonne-sur-Mer | 3,954.41 mi (6,364.01 km) |
| Green Bay to Oloron-Sainte-Marie | 4,129.04 mi (6,645.05 km) |
| Green Bay to Onet Village | 4,213.65 mi (6,781.21 km) |
| Green Bay to Onnaing | 4,018.65 mi (6,467.39 km) |
| Green Bay to Orange | 4,311.65 mi (6,938.93 km) |
| Green Bay to Orchies | 4,002.30 mi (6,441.08 km) |
| Green Bay to Orleans | 4,048.63 mi (6,515.63 km) |
| Green Bay to Orly | 4,035.34 mi (6,494.25 km) |
| Green Bay to Ormesson-sur-Marne | 4,039.30 mi (6,500.63 km) |
| Green Bay to Orsay | 4,029.23 mi (6,484.42 km) |
