| Silleda to Oswego (Illinois) | 3,935.13 mi (6,332.99 km) |
| Silleda to Oswego (New York) | 3,344.00 mi (5,381.65 km) |
| Silleda to Otsego (Minnesota) | 4,037.99 mi (6,498.51 km) |
| Silleda to Ottawa (Illinois) | 3,968.42 mi (6,386.56 km) |
| Silleda to Ottawa (Kansas) | 4,357.98 mi (7,013.49 km) |
| Silleda to Ottumwa (Iowa) | 4,139.82 mi (6,662.40 km) |
| Silleda to Overland (Missouri) | 4,134.32 mi (6,653.55 km) |
| Silleda to Overland Park (Kansas) | 4,321.12 mi (6,954.17 km) |
| Silleda to Overlea (Maryland) | 3,467.24 mi (5,579.98 km) |
| Silleda to Oviedo (Florida) | 4,080.03 mi (6,566.17 km) |
| Silleda to Owasso (Oklahoma) | 4,475.44 mi (7,202.52 km) |
| Silleda to Owatonna (Minnesota) | 4,063.33 mi (6,539.29 km) |
| Silleda to Owensboro (Kentucky) | 4,019.75 mi (6,469.17 km) |
| Silleda to Owings Mills (Maryland) | 3,478.73 mi (5,598.48 km) |
| Silleda to Owosso (Michigan) | 3,705.34 mi (5,963.17 km) |
