| Campiglia Marittima to Oakley (California) | 6,088.66 mi (9,798.76 km) |
| Campiglia Marittima to Oakton (Virginia) | 4,373.45 mi (7,038.38 km) |
| Campiglia Marittima to Oakville (Missouri) | 4,945.42 mi (7,958.89 km) |
| Campiglia Marittima to Oatfield (Oregon) | 5,681.65 mi (9,143.73 km) |
| Campiglia Marittima to Ocala (Florida) | 5,003.46 mi (8,052.29 km) |
| Campiglia Marittima to Ocean Acres (New Jersey) | 4,206.86 mi (6,770.28 km) |
| Campiglia Marittima to Ocean City (New Jersey) | 4,239.35 mi (6,822.57 km) |
| Campiglia Marittima to Ocean Pines (Maryland) | 4,298.01 mi (6,916.98 km) |
| Campiglia Marittima to Ocean Pointe (Hawaii) | 7,930.21 mi (12,762.44 km) |
| Campiglia Marittima to Ocean Springs (Mississippi) | 5,247.95 mi (8,445.75 km) |
| Campiglia Marittima to Oceanside (California) | 6,224.22 mi (10,016.92 km) |
| Campiglia Marittima to Oceanside (New York) | 4,144.71 mi (6,670.27 km) |
| Campiglia Marittima to Ocoee (Florida) | 5,001.42 mi (8,049.01 km) |
| Campiglia Marittima to Oconomowoc (Wisconsin) | 4,666.31 mi (7,509.70 km) |
| Campiglia Marittima to Odenton (Maryland) | 4,339.68 mi (6,984.04 km) |
