| Siniscola to Oswego (Illinois) | 4,789.03 mi (7,707.20 km) |
| Siniscola to Oswego (New York) | 4,218.78 mi (6,789.48 km) |
| Siniscola to Otsego (Minnesota) | 4,849.57 mi (7,804.62 km) |
| Siniscola to Ottawa (Illinois) | 4,822.84 mi (7,761.62 km) |
| Siniscola to Ottawa (Kansas) | 5,207.67 mi (8,380.93 km) |
| Siniscola to Ottumwa (Iowa) | 4,984.71 mi (8,022.11 km) |
| Siniscola to Overland (Missouri) | 4,999.56 mi (8,046.01 km) |
| Siniscola to Overland Park (Kansas) | 5,171.14 mi (8,322.15 km) |
| Siniscola to Overlea (Maryland) | 4,364.76 mi (7,024.41 km) |
| Siniscola to Oviedo (Florida) | 5,005.31 mi (8,055.27 km) |
| Siniscola to Owasso (Oklahoma) | 5,336.01 mi (8,587.47 km) |
| Siniscola to Owatonna (Minnesota) | 4,884.85 mi (7,861.41 km) |
| Siniscola to Owensboro (Kentucky) | 4,899.50 mi (7,884.99 km) |
| Siniscola to Owings Mills (Maryland) | 4,375.45 mi (7,041.60 km) |
| Siniscola to Owosso (Michigan) | 4,563.18 mi (7,343.73 km) |
