| Silleda to Orangevale (California) | 5,421.76 mi (8,725.49 km) |
| Silleda to Orchards (Washington) | 5,119.55 mi (8,239.12 km) |
| Silleda to Orcutt (California) | 5,582.31 mi (8,983.86 km) |
| Silleda to Oregon (Ohio) | 3,715.32 mi (5,979.23 km) |
| Silleda to Oregon (Wisconsin) | 3,938.53 mi (6,338.46 km) |
| Silleda to Oregon City (Oregon) | 5,138.86 mi (8,270.20 km) |
| Silleda to Orem (Utah) | 4,978.60 mi (8,012.29 km) |
| Silleda to Orinda (California) | 5,497.99 mi (8,848.17 km) |
| Silleda to Orland Park (Illinois) | 3,916.56 mi (6,303.09 km) |
| Silleda to Orlando (Florida) | 4,094.64 mi (6,589.69 km) |
| Silleda to Ormond Beach (Florida) | 4,050.50 mi (6,518.65 km) |
| Silleda to Oro Valley (Arizona) | 5,312.91 mi (8,550.31 km) |
| Silleda to Oroville (California) | 5,393.85 mi (8,680.56 km) |
| Silleda to Oshkosh (Wisconsin) | 3,865.08 mi (6,220.24 km) |
| Silleda to Oskaloosa (Iowa) | 4,139.50 mi (6,661.89 km) |
