| Sint-Truiden to Oignies | 98.90 mi (159.16 km) |
| Sint-Truiden to Oissel | 208.04 mi (334.82 km) |
| Sint-Truiden to Olivet | 251.86 mi (405.34 km) |
| Sint-Truiden to Ollioules | 531.37 mi (855.15 km) |
| Sint-Truiden to Olonne-sur-Mer | 433.47 mi (697.60 km) |
| Sint-Truiden to Oloron-Sainte-Marie | 592.68 mi (953.83 km) |
| Sint-Truiden to Onet Village | 461.70 mi (743.03 km) |
| Sint-Truiden to Onnaing | 75.57 mi (121.61 km) |
| Sint-Truiden to Orange | 461.76 mi (743.13 km) |
| Sint-Truiden to Orchies | 88.18 mi (141.91 km) |
| Sint-Truiden to Orleans | 249.45 mi (401.46 km) |
| Sint-Truiden to Orly | 189.74 mi (305.35 km) |
| Sint-Truiden to Ormesson-sur-Marne | 183.29 mi (294.97 km) |
| Sint-Truiden to Orsay | 198.23 mi (319.02 km) |
| Sint-Truiden to Orthez | 578.06 mi (930.29 km) |
