| Petrila to Octeville | 1,198.04 mi (1,928.05 km) |
| Petrila to Oignies | 1,002.78 mi (1,613.82 km) |
| Petrila to Oissel | 1,074.03 mi (1,728.48 km) |
| Petrila to Olivet | 1,030.58 mi (1,658.56 km) |
| Petrila to Ollioules | 881.74 mi (1,419.02 km) |
| Petrila to Olonne-sur-Mer | 1,206.49 mi (1,941.66 km) |
| Petrila to Oloron-Sainte-Marie | 1,193.31 mi (1,920.44 km) |
| Petrila to Onet Village | 1,019.02 mi (1,639.96 km) |
| Petrila to Onnaing | 975.59 mi (1,570.06 km) |
| Petrila to Orange | 914.91 mi (1,472.41 km) |
| Petrila to Orchies | 992.11 mi (1,596.64 km) |
| Petrila to Orleans | 1,030.26 mi (1,658.04 km) |
| Petrila to Orly | 1,011.37 mi (1,627.64 km) |
| Petrila to Ormesson-sur-Marne | 1,005.03 mi (1,617.45 km) |
| Petrila to Orsay | 1,020.42 mi (1,642.21 km) |
