| Sillamae to Orangevale (California) | 5,431.94 mi (8,741.87 km) |
| Sillamae to Orchards (Washington) | 4,983.48 mi (8,020.14 km) |
| Sillamae to Orcutt (California) | 5,674.18 mi (9,131.71 km) |
| Sillamae to Oregon (Ohio) | 4,439.42 mi (7,144.55 km) |
| Sillamae to Oregon (Wisconsin) | 4,520.10 mi (7,274.40 km) |
| Sillamae to Oregon City (Oregon) | 5,007.41 mi (8,058.64 km) |
| Sillamae to Orem (Utah) | 5,171.03 mi (8,321.97 km) |
| Sillamae to Orinda (California) | 5,499.44 mi (8,850.49 km) |
| Sillamae to Orland Park (Illinois) | 4,559.87 mi (7,338.39 km) |
| Sillamae to Orlando (Florida) | 5,161.34 mi (8,306.38 km) |
| Sillamae to Ormond Beach (Florida) | 5,105.08 mi (8,215.83 km) |
| Sillamae to Oro Valley (Arizona) | 5,669.12 mi (9,123.57 km) |
| Sillamae to Oroville (California) | 5,382.78 mi (8,662.74 km) |
| Sillamae to Oshkosh (Wisconsin) | 4,433.70 mi (7,135.36 km) |
| Sillamae to Oskaloosa (Iowa) | 4,699.67 mi (7,563.39 km) |
