| Campiglia Marittima to Oswego (Illinois) | 4,721.46 mi (7,598.45 km) |
| Campiglia Marittima to Oswego (New York) | 4,162.50 mi (6,698.90 km) |
| Campiglia Marittima to Otsego (Minnesota) | 4,766.32 mi (7,670.65 km) |
| Campiglia Marittima to Ottawa (Illinois) | 4,755.38 mi (7,653.04 km) |
| Campiglia Marittima to Ottawa (Kansas) | 5,136.99 mi (8,267.19 km) |
| Campiglia Marittima to Ottumwa (Iowa) | 4,912.85 mi (7,906.47 km) |
| Campiglia Marittima to Overland (Missouri) | 4,936.18 mi (7,944.01 km) |
| Campiglia Marittima to Overland Park (Kansas) | 5,100.72 mi (8,208.81 km) |
| Campiglia Marittima to Overlea (Maryland) | 4,320.18 mi (6,952.66 km) |
| Campiglia Marittima to Oviedo (Florida) | 4,981.86 mi (8,017.53 km) |
| Campiglia Marittima to Owasso (Oklahoma) | 5,269.51 mi (8,480.46 km) |
| Campiglia Marittima to Owatonna (Minnesota) | 4,804.80 mi (7,732.58 km) |
| Campiglia Marittima to Owensboro (Kentucky) | 4,843.37 mi (7,794.66 km) |
| Campiglia Marittima to Owings Mills (Maryland) | 4,330.34 mi (6,969.00 km) |
| Campiglia Marittima to Owosso (Michigan) | 4,498.05 mi (7,238.91 km) |
