| Silleda to Oakley (California) | 5,474.30 mi (8,810.03 km) |
| Silleda to Oakton (Virginia) | 3,519.70 mi (5,664.41 km) |
| Silleda to Oakville (Missouri) | 4,141.38 mi (6,664.90 km) |
| Silleda to Oatfield (Oregon) | 5,135.40 mi (8,264.63 km) |
| Silleda to Ocala (Florida) | 4,107.23 mi (6,609.95 km) |
| Silleda to Ocean Acres (New Jersey) | 3,349.04 mi (5,389.76 km) |
| Silleda to Ocean City (New Jersey) | 3,379.00 mi (5,437.98 km) |
| Silleda to Ocean Pines (Maryland) | 3,433.01 mi (5,524.89 km) |
| Silleda to Ocean Pointe (Hawaii) | 7,613.64 mi (12,252.97 km) |
| Silleda to Ocean Springs (Mississippi) | 4,382.59 mi (7,053.10 km) |
| Silleda to Oceanside (California) | 5,539.44 mi (8,914.87 km) |
| Silleda to Oceanside (New York) | 3,291.71 mi (5,297.50 km) |
| Silleda to Ocoee (Florida) | 4,100.32 mi (6,598.83 km) |
| Silleda to Oconomowoc (Wisconsin) | 3,893.33 mi (6,265.71 km) |
| Silleda to Odenton (Maryland) | 3,485.10 mi (5,608.72 km) |
