| Sasso Marconi to Oswego (Illinois) | 4,690.61 mi (7,548.81 km) |
| Sasso Marconi to Oswego (New York) | 4,138.53 mi (6,660.32 km) |
| Sasso Marconi to Otsego (Minnesota) | 4,726.59 mi (7,606.72 km) |
| Sasso Marconi to Ottawa (Illinois) | 4,724.56 mi (7,603.44 km) |
| Sasso Marconi to Ottawa (Kansas) | 5,104.05 mi (8,214.17 km) |
| Sasso Marconi to Ottumwa (Iowa) | 4,879.43 mi (7,852.68 km) |
| Sasso Marconi to Overland (Missouri) | 4,907.50 mi (7,897.85 km) |
| Sasso Marconi to Overland Park (Kansas) | 5,067.95 mi (8,156.08 km) |
| Sasso Marconi to Overlea (Maryland) | 4,302.57 mi (6,924.31 km) |
| Sasso Marconi to Oviedo (Florida) | 4,975.27 mi (8,006.92 km) |
| Sasso Marconi to Owasso (Oklahoma) | 5,238.80 mi (8,431.04 km) |
| Sasso Marconi to Owatonna (Minnesota) | 4,766.85 mi (7,671.51 km) |
| Sasso Marconi to Owensboro (Kentucky) | 4,818.82 mi (7,755.14 km) |
| Sasso Marconi to Owings Mills (Maryland) | 4,312.42 mi (6,940.16 km) |
| Sasso Marconi to Owosso (Michigan) | 4,468.77 mi (7,191.80 km) |
