| North Adams to Octeville | 3,323.57 mi (5,348.77 km) |
| North Adams to Oignies | 3,493.63 mi (5,622.45 km) |
| North Adams to Oissel | 3,445.02 mi (5,544.23 km) |
| North Adams to Olivet | 3,519.06 mi (5,663.38 km) |
| North Adams to Ollioules | 3,835.40 mi (6,172.47 km) |
| North Adams to Olonne-sur-Mer | 3,397.26 mi (5,467.37 km) |
| North Adams to Oloron-Sainte-Marie | 3,545.16 mi (5,705.38 km) |
| North Adams to Onet Village | 3,652.27 mi (5,877.77 km) |
| North Adams to Onnaing | 3,520.35 mi (5,665.45 km) |
| North Adams to Orange | 3,756.97 mi (6,046.25 km) |
| North Adams to Orchies | 3,503.66 mi (5,638.60 km) |
| North Adams to Orleans | 3,518.34 mi (5,662.21 km) |
| North Adams to Orly | 3,515.39 mi (5,657.47 km) |
| North Adams to Ormesson-sur-Marne | 3,520.31 mi (5,665.39 km) |
| North Adams to Orsay | 3,508.06 mi (5,645.67 km) |
