| Silverton to Oskaloosa (Iowa) | 1,531.72 mi (2,465.06 km) |
| Silverton to Oswego (Illinois) | 1,732.61 mi (2,788.36 km) |
| Silverton to Oswego (New York) | 2,262.43 mi (3,641.03 km) |
| Silverton to Otsego (Minnesota) | 1,413.66 mi (2,275.06 km) |
| Silverton to Ottawa (Illinois) | 1,716.40 mi (2,762.28 km) |
| Silverton to Ottawa (Kansas) | 1,476.51 mi (2,376.22 km) |
| Silverton to Ottumwa (Iowa) | 1,549.03 mi (2,492.93 km) |
| Silverton to Overland (Missouri) | 1,711.60 mi (2,754.55 km) |
| Silverton to Overland Park (Kansas) | 1,495.79 mi (2,407.25 km) |
| Silverton to Overlea (Maryland) | 2,367.55 mi (3,810.20 km) |
| Silverton to Oviedo (Florida) | 2,526.60 mi (4,066.17 km) |
| Silverton to Owasso (Oklahoma) | 1,526.62 mi (2,456.85 km) |
| Silverton to Owatonna (Minnesota) | 1,448.33 mi (2,330.87 km) |
| Silverton to Owensboro (Kentucky) | 1,898.67 mi (3,055.61 km) |
| Silverton to Owings Mills (Maryland) | 2,352.91 mi (3,786.64 km) |
