| Sint-Gillis-bij-Dendermonde to Oignies | 61.70 mi (99.30 km) |
| Sint-Gillis-bij-Dendermonde to Oissel | 176.65 mi (284.29 km) |
| Sint-Gillis-bij-Dendermonde to Olivet | 239.42 mi (385.31 km) |
| Sint-Gillis-bij-Dendermonde to Ollioules | 550.51 mi (885.95 km) |
| Sint-Gillis-bij-Dendermonde to Olonne-sur-Mer | 409.10 mi (658.38 km) |
| Sint-Gillis-bij-Dendermonde to Oloron-Sainte-Marie | 583.99 mi (939.84 km) |
| Sint-Gillis-bij-Dendermonde to Onet Village | 465.02 mi (748.38 km) |
| Sint-Gillis-bij-Dendermonde to Onnaing | 48.94 mi (78.76 km) |
| Sint-Gillis-bij-Dendermonde to Orange | 476.53 mi (766.90 km) |
| Sint-Gillis-bij-Dendermonde to Orchies | 53.22 mi (85.65 km) |
| Sint-Gillis-bij-Dendermonde to Orleans | 236.82 mi (381.12 km) |
| Sint-Gillis-bij-Dendermonde to Orly | 174.70 mi (281.15 km) |
| Sint-Gillis-bij-Dendermonde to Ormesson-sur-Marne | 169.32 mi (272.49 km) |
| Sint-Gillis-bij-Dendermonde to Orsay | 181.68 mi (292.39 km) |
| Sint-Gillis-bij-Dendermonde to Orthez | 568.06 mi (914.20 km) |
