| Silkeborg to Oswego (Illinois) | 4,166.32 mi (6,705.04 km) |
| Silkeborg to Oswego (New York) | 3,674.86 mi (5,914.11 km) |
| Silkeborg to Otsego (Minnesota) | 4,141.28 mi (6,664.75 km) |
| Silkeborg to Ottawa (Illinois) | 4,199.86 mi (6,759.03 km) |
| Silkeborg to Ottawa (Kansas) | 4,558.54 mi (7,336.26 km) |
| Silkeborg to Ottumwa (Iowa) | 4,334.19 mi (6,975.20 km) |
| Silkeborg to Overland (Missouri) | 4,394.52 mi (7,072.29 km) |
| Silkeborg to Overland Park (Kansas) | 4,524.16 mi (7,280.92 km) |
| Silkeborg to Overlea (Maryland) | 3,882.34 mi (6,248.02 km) |
| Silkeborg to Oviedo (Florida) | 4,623.15 mi (7,440.25 km) |
| Silkeborg to Owasso (Oklahoma) | 4,706.41 mi (7,574.24 km) |
| Silkeborg to Owatonna (Minnesota) | 4,192.77 mi (6,747.60 km) |
| Silkeborg to Owensboro (Kentucky) | 4,336.68 mi (6,979.22 km) |
| Silkeborg to Owings Mills (Maryland) | 3,889.67 mi (6,259.83 km) |
| Silkeborg to Owosso (Michigan) | 3,959.67 mi (6,372.48 km) |
