| Puerto del Rosario to Olympia Heights (Florida) | 4,038.90 mi (6,499.99 km) |
| Puerto del Rosario to Omaha (Nebraska) | 4,569.83 mi (7,354.43 km) |
| Puerto del Rosario to On Top of the World Designated Place (Florida) | 4,078.92 mi (6,564.39 km) |
| Puerto del Rosario to Onalaska (Wisconsin) | 4,283.24 mi (6,893.20 km) |
| Puerto del Rosario to Oneida (New York) | 3,523.99 mi (5,671.32 km) |
| Puerto del Rosario to Oneonta (New York) | 3,497.52 mi (5,628.72 km) |
| Puerto del Rosario to Ontario (California) | 5,845.20 mi (9,406.95 km) |
| Puerto del Rosario to Ontario (Oregon) | 5,468.49 mi (8,800.69 km) |
| Puerto del Rosario to Opa-locka (Florida) | 4,030.04 mi (6,485.72 km) |
| Puerto del Rosario to Opelika (Alabama) | 4,181.42 mi (6,729.35 km) |
| Puerto del Rosario to Opelousas (Louisiana) | 4,602.37 mi (7,406.81 km) |
| Puerto del Rosario to Orange (California) | 5,864.17 mi (9,437.48 km) |
| Puerto del Rosario to Orange (Texas) | 4,705.87 mi (7,573.36 km) |
| Puerto del Rosario to Orange City (Florida) | 4,024.94 mi (6,477.52 km) |
| Puerto del Rosario to Orangeburg (South Carolina) | 3,914.52 mi (6,299.81 km) |
