| Povoa de Lanhoso to Orangevale (California) | 5,473.82 mi (8,809.26 km) |
| Povoa de Lanhoso to Orchards (Washington) | 5,177.19 mi (8,331.89 km) |
| Povoa de Lanhoso to Orcutt (California) | 5,631.05 mi (9,062.30 km) |
| Povoa de Lanhoso to Oregon (Ohio) | 3,749.08 mi (6,033.56 km) |
| Povoa de Lanhoso to Oregon (Wisconsin) | 3,977.03 mi (6,400.40 km) |
| Povoa de Lanhoso to Oregon City (Oregon) | 5,196.30 mi (8,362.64 km) |
| Povoa de Lanhoso to Orem (Utah) | 5,026.45 mi (8,089.29 km) |
| Povoa de Lanhoso to Orinda (California) | 5,550.03 mi (8,931.91 km) |
| Povoa de Lanhoso to Orland Park (Illinois) | 3,952.61 mi (6,361.11 km) |
| Povoa de Lanhoso to Orlando (Florida) | 4,109.53 mi (6,613.66 km) |
| Povoa de Lanhoso to Ormond Beach (Florida) | 4,066.28 mi (6,544.04 km) |
| Povoa de Lanhoso to Oro Valley (Arizona) | 5,353.41 mi (8,615.49 km) |
| Povoa de Lanhoso to Oroville (California) | 5,446.68 mi (8,765.59 km) |
| Povoa de Lanhoso to Oshkosh (Wisconsin) | 3,904.52 mi (6,283.72 km) |
| Povoa de Lanhoso to Oskaloosa (Iowa) | 4,177.75 mi (6,723.43 km) |
