| Mettlach to Orangevale (California) | 5,564.71 mi (8,955.54 km) |
| Mettlach to Orchards (Washington) | 5,186.55 mi (8,346.95 km) |
| Mettlach to Orcutt (California) | 5,766.91 mi (9,280.95 km) |
| Mettlach to Oregon (Ohio) | 4,122.42 mi (6,634.39 km) |
| Mettlach to Oregon (Wisconsin) | 4,289.48 mi (6,903.25 km) |
| Mettlach to Oregon City (Oregon) | 5,208.59 mi (8,382.41 km) |
| Mettlach to Orem (Utah) | 5,189.86 mi (8,352.27 km) |
| Mettlach to Orinda (California) | 5,639.31 mi (9,075.59 km) |
| Mettlach to Orland Park (Illinois) | 4,294.39 mi (6,911.15 km) |
| Mettlach to Orlando (Florida) | 4,661.99 mi (7,502.74 km) |
| Mettlach to Ormond Beach (Florida) | 4,611.68 mi (7,421.78 km) |
| Mettlach to Oro Valley (Arizona) | 5,607.04 mi (9,023.66 km) |
| Mettlach to Oroville (California) | 5,526.32 mi (8,893.76 km) |
| Mettlach to Oshkosh (Wisconsin) | 4,207.61 mi (6,771.49 km) |
| Mettlach to Oskaloosa (Iowa) | 4,487.72 mi (7,222.29 km) |
