| Sillamae to Oswego (Illinois) | 4,567.63 mi (7,350.89 km) |
| Sillamae to Oswego (New York) | 4,141.99 mi (6,665.89 km) |
| Sillamae to Otsego (Minnesota) | 4,481.79 mi (7,212.74 km) |
| Sillamae to Ottawa (Illinois) | 4,599.87 mi (7,402.78 km) |
| Sillamae to Ottawa (Kansas) | 4,928.83 mi (7,932.19 km) |
| Sillamae to Ottumwa (Iowa) | 4,710.80 mi (7,581.29 km) |
| Sillamae to Overland (Missouri) | 4,800.05 mi (7,724.94 km) |
| Sillamae to Overland Park (Kansas) | 4,897.06 mi (7,881.06 km) |
| Sillamae to Overlea (Maryland) | 4,376.29 mi (7,042.96 km) |
| Sillamae to Oviedo (Florida) | 5,145.99 mi (8,281.66 km) |
| Sillamae to Owasso (Oklahoma) | 5,085.67 mi (8,184.59 km) |
| Sillamae to Owatonna (Minnesota) | 4,543.87 mi (7,312.65 km) |
| Sillamae to Owensboro (Kentucky) | 4,770.75 mi (7,677.79 km) |
| Sillamae to Owings Mills (Maryland) | 4,381.63 mi (7,051.56 km) |
| Sillamae to Owosso (Michigan) | 4,380.63 mi (7,049.94 km) |
