| Zalec to Octeville | 810.18 mi (1,303.86 km) |
| Zalec to Oignies | 629.11 mi (1,012.46 km) |
| Zalec to Oissel | 685.99 mi (1,103.99 km) |
| Zalec to Olivet | 633.36 mi (1,019.29 km) |
| Zalec to Ollioules | 505.17 mi (812.99 km) |
| Zalec to Olonne-sur-Mer | 805.79 mi (1,296.79 km) |
| Zalec to Oloron-Sainte-Marie | 800.99 mi (1,289.06 km) |
| Zalec to Onet Village | 623.85 mi (1,003.98 km) |
| Zalec to Onnaing | 602.46 mi (969.56 km) |
| Zalec to Orange | 524.41 mi (843.96 km) |
| Zalec to Orchies | 619.13 mi (996.40 km) |
| Zalec to Orleans | 633.22 mi (1,019.06 km) |
| Zalec to Orly | 619.70 mi (997.31 km) |
| Zalec to Ormesson-sur-Marne | 613.79 mi (987.80 km) |
| Zalec to Orsay | 628.28 mi (1,011.12 km) |
