| Oliveira de Frades to Orangevale (California) | 5,517.08 mi (8,878.89 km) |
| Oliveira de Frades to Orchards (Washington) | 5,224.26 mi (8,407.64 km) |
| Oliveira de Frades to Orcutt (California) | 5,672.03 mi (9,128.25 km) |
| Oliveira de Frades to Oregon (Ohio) | 3,779.99 mi (6,083.30 km) |
| Oliveira de Frades to Oregon (Wisconsin) | 4,011.19 mi (6,455.39 km) |
| Oliveira de Frades to Oregon City (Oregon) | 5,243.23 mi (8,438.16 km) |
| Oliveira de Frades to Orem (Utah) | 5,066.90 mi (8,154.38 km) |
| Oliveira de Frades to Orinda (California) | 5,593.27 mi (9,001.51 km) |
| Oliveira de Frades to Orland Park (Illinois) | 3,985.08 mi (6,413.36 km) |
| Oliveira de Frades to Orlando (Florida) | 4,126.78 mi (6,641.40 km) |
| Oliveira de Frades to Ormond Beach (Florida) | 4,084.17 mi (6,572.84 km) |
| Oliveira de Frades to Oro Valley (Arizona) | 5,388.70 mi (8,672.28 km) |
| Oliveira de Frades to Oroville (California) | 5,490.48 mi (8,836.08 km) |
| Oliveira de Frades to Oshkosh (Wisconsin) | 3,939.37 mi (6,339.80 km) |
| Oliveira de Frades to Oskaloosa (Iowa) | 4,211.69 mi (6,778.06 km) |
