| Silleda to Odessa (Texas) | 4,956.37 mi (7,976.50 km) |
| Silleda to Ogden (Utah) | 4,946.82 mi (7,961.14 km) |
| Silleda to Oildale (California) | 5,499.88 mi (8,851.21 km) |
| Silleda to Ojus (Florida) | 4,137.32 mi (6,658.37 km) |
| Silleda to Okemos (Michigan) | 3,725.33 mi (5,995.34 km) |
| Silleda to Oklahoma City (Oklahoma) | 4,584.92 mi (7,378.71 km) |
| Silleda to Okmulgee (Oklahoma) | 4,510.72 mi (7,259.31 km) |
| Silleda to Olathe (Kansas) | 4,327.18 mi (6,963.92 km) |
| Silleda to Old Jamestown (Missouri) | 4,125.18 mi (6,638.84 km) |
| Silleda to Oldsmar (Florida) | 4,177.86 mi (6,723.62 km) |
| Silleda to Olean (New York) | 3,472.80 mi (5,588.94 km) |
| Silleda to Olive Branch (Mississippi) | 4,252.47 mi (6,843.69 km) |
| Silleda to Olivehurst (California) | 5,414.64 mi (8,714.02 km) |
| Silleda to Olney (Maryland) | 3,500.48 mi (5,633.47 km) |
| Silleda to Olympia (Washington) | 5,064.66 mi (8,150.78 km) |
