| Cities | Distance |
|---|---|
| Duffel to Nowy Sacz | 718.94 mi (1,157.03 km) |
| Duffel to Nowy Targ | 692.22 mi (1,114.03 km) |
| Duffel to Nowy Tomysl | 503.84 mi (810.86 km) |
| Duffel to Nysa | 560.85 mi (902.60 km) |
| Duffel to Oborniki | 534.79 mi (860.67 km) |
| Duffel to Oborniki Slaskie | 535.75 mi (862.20 km) |
| Duffel to Olawa | 555.06 mi (893.29 km) |
| Duffel to Olecko | 779.59 mi (1,254.64 km) |
| Duffel to Olesnica | 556.98 mi (896.38 km) |
| Duffel to Olesno | 603.86 mi (971.82 km) |
| Duffel to Olkusz | 659.94 mi (1,062.08 km) |
| Duffel to Olsztyn | 695.65 mi (1,119.54 km) |
| Duffel to Opalenica | 515.59 mi (829.76 km) |
| Duffel to Opoczno | 681.14 mi (1,096.19 km) |
| Duffel to Opole | 584.80 mi (941.14 km) |