| Sillamae to Oakley (California) | 5,485.07 mi (8,827.37 km) |
| Sillamae to Oakton (Virginia) | 4,426.83 mi (7,124.30 km) |
| Sillamae to Oakville (Missouri) | 4,813.87 mi (7,747.17 km) |
| Sillamae to Oatfield (Oregon) | 5,002.72 mi (8,051.09 km) |
| Sillamae to Ocala (Florida) | 5,143.89 mi (8,278.28 km) |
| Sillamae to Ocean Acres (New Jersey) | 4,288.09 mi (6,901.02 km) |
| Sillamae to Ocean City (New Jersey) | 4,324.86 mi (6,960.20 km) |
| Sillamae to Ocean Pines (Maryland) | 4,391.92 mi (7,068.12 km) |
| Sillamae to Ocean Pointe (Hawaii) | 6,850.69 mi (11,025.12 km) |
| Sillamae to Ocean Springs (Mississippi) | 5,261.80 mi (8,468.04 km) |
| Sillamae to Oceanside (California) | 5,732.84 mi (9,226.11 km) |
| Sillamae to Oceanside (New York) | 4,218.17 mi (6,788.50 km) |
| Sillamae to Ocoee (Florida) | 5,161.15 mi (8,306.07 km) |
| Sillamae to Oconomowoc (Wisconsin) | 4,487.04 mi (7,221.19 km) |
| Sillamae to Odenton (Maryland) | 4,398.68 mi (7,078.99 km) |
