| Mettet to Oignies | 73.99 mi (119.08 km) |
| Mettet to Oissel | 172.64 mi (277.83 km) |
| Mettet to Olivet | 210.52 mi (338.80 km) |
| Mettet to Ollioules | 499.25 mi (803.46 km) |
| Mettet to Olonne-sur-Mer | 393.73 mi (633.64 km) |
| Mettet to Oloron-Sainte-Marie | 551.41 mi (887.41 km) |
| Mettet to Onet Village | 422.50 mi (679.95 km) |
| Mettet to Onnaing | 46.92 mi (75.51 km) |
| Mettet to Orange | 427.12 mi (687.38 km) |
| Mettet to Orchies | 63.14 mi (101.62 km) |
| Mettet to Orleans | 208.12 mi (334.94 km) |
| Mettet to Orly | 148.83 mi (239.52 km) |
| Mettet to Ormesson-sur-Marne | 142.27 mi (228.96 km) |
| Mettet to Orsay | 157.53 mi (253.51 km) |
| Mettet to Orthez | 536.70 mi (863.74 km) |
