| Cities | Distance |
|---|---|
| Vianden to Orbetello | 570.15 mi (917.56 km) |
| Vianden to Oria | 854.84 mi (1,375.73 km) |
| Vianden to Oristano | 702.50 mi (1,130.57 km) |
| Vianden to Orta Nova | 749.84 mi (1,206.75 km) |
| Vianden to Orte | 594.45 mi (956.67 km) |
| Vianden to Ortona | 653.67 mi (1,051.98 km) |
| Vianden to Orvieto | 572.16 mi (920.80 km) |
| Vianden to Orzinuovi | 357.91 mi (575.99 km) |
| Vianden to Osimo | 562.86 mi (905.84 km) |
| Vianden to Ospitaletto | 351.70 mi (566.01 km) |
| Vianden to Ostuni | 840.36 mi (1,352.43 km) |
| Vianden to Ottaviano | 743.91 mi (1,197.20 km) |
| Vianden to Ovada | 383.19 mi (616.69 km) |
| Vianden to Ozieri | 659.96 mi (1,062.11 km) |
| Vianden to Paceco | 883.09 mi (1,421.20 km) |