| Perth to Orangevale (California) | 4,932.17 mi (7,937.57 km) |
| Perth to Orchards (Washington) | 4,554.83 mi (7,330.29 km) |
| Perth to Orcutt (California) | 5,135.74 mi (8,265.17 km) |
| Perth to Oregon (Ohio) | 3,543.90 mi (5,703.35 km) |
| Perth to Oregon (Wisconsin) | 3,691.63 mi (5,941.11 km) |
| Perth to Oregon City (Oregon) | 4,576.77 mi (7,365.60 km) |
| Perth to Orem (Utah) | 4,561.73 mi (7,341.39 km) |
| Perth to Orinda (California) | 5,006.71 mi (8,057.51 km) |
| Perth to Orland Park (Illinois) | 3,704.33 mi (5,961.55 km) |
| Perth to Orlando (Florida) | 4,149.84 mi (6,678.52 km) |
| Perth to Ormond Beach (Florida) | 4,096.69 mi (6,592.98 km) |
| Perth to Oro Valley (Arizona) | 4,988.47 mi (8,028.17 km) |
| Perth to Oroville (California) | 4,893.64 mi (7,875.55 km) |
| Perth to Oshkosh (Wisconsin) | 3,608.21 mi (5,806.85 km) |
| Perth to Oskaloosa (Iowa) | 3,887.44 mi (6,256.23 km) |
