| Mettlach to Oswego (Illinois) | 4,308.76 mi (6,934.28 km) |
| Mettlach to Oswego (New York) | 3,771.10 mi (6,069.01 km) |
| Mettlach to Otsego (Minnesota) | 4,330.51 mi (6,969.28 km) |
| Mettlach to Ottawa (Illinois) | 4,342.71 mi (6,988.91 km) |
| Mettlach to Ottawa (Kansas) | 4,717.99 mi (7,592.88 km) |
| Mettlach to Ottumwa (Iowa) | 4,492.87 mi (7,230.57 km) |
| Mettlach to Overland (Missouri) | 4,529.24 mi (7,289.11 km) |
| Mettlach to Overland Park (Kansas) | 4,682.23 mi (7,535.32 km) |
| Mettlach to Overlea (Maryland) | 3,948.74 mi (6,354.88 km) |
| Mettlach to Oviedo (Florida) | 4,646.72 mi (7,478.17 km) |
| Mettlach to Owasso (Oklahoma) | 4,856.40 mi (7,815.61 km) |
| Mettlach to Owatonna (Minnesota) | 4,373.29 mi (7,038.13 km) |
| Mettlach to Owensboro (Kentucky) | 4,448.73 mi (7,159.54 km) |
| Mettlach to Owings Mills (Maryland) | 3,957.86 mi (6,369.56 km) |
| Mettlach to Owosso (Michigan) | 4,090.17 mi (6,582.49 km) |
