| Perth to Odessa (Texas) | 4,730.43 mi (7,612.90 km) |
| Perth to Ogden (Utah) | 4,517.33 mi (7,269.93 km) |
| Perth to Oildale (California) | 5,061.98 mi (8,146.46 km) |
| Perth to Ojus (Florida) | 4,241.90 mi (6,826.67 km) |
| Perth to Okemos (Michigan) | 3,527.18 mi (5,676.45 km) |
| Perth to Oklahoma City (Oklahoma) | 4,365.27 mi (7,025.22 km) |
| Perth to Okmulgee (Oklahoma) | 4,304.72 mi (6,927.78 km) |
| Perth to Olathe (Kansas) | 4,088.66 mi (6,580.07 km) |
| Perth to Old Jamestown (Missouri) | 3,931.84 mi (6,327.69 km) |
| Perth to Oldsmar (Florida) | 4,223.41 mi (6,796.92 km) |
| Perth to Olean (New York) | 3,341.01 mi (5,376.84 km) |
| Perth to Olive Branch (Mississippi) | 4,119.82 mi (6,630.21 km) |
| Perth to Olivehurst (California) | 4,918.33 mi (7,915.29 km) |
| Perth to Olney (Maryland) | 3,434.33 mi (5,527.02 km) |
| Perth to Olympia (Washington) | 4,484.87 mi (7,217.70 km) |
