| Carballo to Olympia Heights (Florida) | 4,128.00 mi (6,643.37 km) |
| Carballo to Omaha (Nebraska) | 4,251.09 mi (6,841.46 km) |
| Carballo to On Top of the World Designated Place (Florida) | 4,086.71 mi (6,576.92 km) |
| Carballo to Onalaska (Wisconsin) | 3,945.83 mi (6,350.19 km) |
| Carballo to Oneida (New York) | 3,280.53 mi (5,279.50 km) |
| Carballo to Oneonta (New York) | 3,270.97 mi (5,264.12 km) |
| Carballo to Ontario (California) | 5,471.88 mi (8,806.14 km) |
| Carballo to Ontario (Oregon) | 4,964.68 mi (7,989.89 km) |
| Carballo to Opa-locka (Florida) | 4,116.57 mi (6,624.97 km) |
| Carballo to Opelika (Alabama) | 4,096.26 mi (6,592.29 km) |
| Carballo to Opelousas (Louisiana) | 4,502.61 mi (7,246.25 km) |
| Carballo to Orange (California) | 5,492.14 mi (8,838.74 km) |
| Carballo to Orange (Texas) | 4,599.07 mi (7,401.48 km) |
| Carballo to Orange City (Florida) | 4,044.40 mi (6,508.83 km) |
| Carballo to Orangeburg (South Carolina) | 3,847.06 mi (6,191.25 km) |
