| Somma Vesuviana to Oswego (Illinois) | 4,969.36 mi (7,997.41 km) |
| Somma Vesuviana to Oswego (New York) | 4,410.11 mi (7,097.39 km) |
| Somma Vesuviana to Otsego (Minnesota) | 5,012.63 mi (8,067.05 km) |
| Somma Vesuviana to Ottawa (Illinois) | 5,003.28 mi (8,052.00 km) |
| Somma Vesuviana to Ottawa (Kansas) | 5,384.74 mi (8,665.90 km) |
| Somma Vesuviana to Ottumwa (Iowa) | 5,160.54 mi (8,305.08 km) |
| Somma Vesuviana to Overland (Missouri) | 5,184.12 mi (8,343.03 km) |
| Somma Vesuviana to Overland Park (Kansas) | 5,348.48 mi (8,607.55 km) |
| Somma Vesuviana to Overlea (Maryland) | 4,566.38 mi (7,348.88 km) |
| Somma Vesuviana to Oviedo (Florida) | 5,223.01 mi (8,405.62 km) |
| Somma Vesuviana to Owasso (Oklahoma) | 5,517.42 mi (8,879.43 km) |
| Somma Vesuviana to Owatonna (Minnesota) | 5,051.62 mi (8,129.80 km) |
| Somma Vesuviana to Owensboro (Kentucky) | 5,091.02 mi (8,193.20 km) |
| Somma Vesuviana to Owings Mills (Maryland) | 4,576.63 mi (7,365.37 km) |
| Somma Vesuviana to Owosso (Michigan) | 4,745.99 mi (7,637.93 km) |
