| Sint-Gillis-bij-Dendermonde to Oria | 973.36 mi (1,566.48 km) |
| Sint-Gillis-bij-Dendermonde to Oristano | 797.63 mi (1,283.66 km) |
| Sint-Gillis-bij-Dendermonde to Orta Nova | 867.59 mi (1,396.25 km) |
| Sint-Gillis-bij-Dendermonde to Orte | 708.53 mi (1,140.27 km) |
| Sint-Gillis-bij-Dendermonde to Ortona | 771.04 mi (1,240.88 km) |
| Sint-Gillis-bij-Dendermonde to Orvieto | 686.05 mi (1,104.08 km) |
| Sint-Gillis-bij-Dendermonde to Orzinuovi | 471.60 mi (758.97 km) |
| Sint-Gillis-bij-Dendermonde to Osimo | 680.46 mi (1,095.09 km) |
| Sint-Gillis-bij-Dendermonde to Ospitaletto | 466.33 mi (750.49 km) |
| Sint-Gillis-bij-Dendermonde to Ostuni | 958.97 mi (1,543.31 km) |
| Sint-Gillis-bij-Dendermonde to Ottaviano | 859.62 mi (1,383.43 km) |
| Sint-Gillis-bij-Dendermonde to Ovada | 488.30 mi (785.84 km) |
| Sint-Gillis-bij-Dendermonde to Ozieri | 758.10 mi (1,220.04 km) |
| Sint-Gillis-bij-Dendermonde to Paceco | 990.61 mi (1,594.23 km) |
| Sint-Gillis-bij-Dendermonde to Pachino | 1,126.98 mi (1,813.70 km) |
