| Formigine to Oswego (Illinois) | 4,669.52 mi (7,514.87 km) |
| Formigine to Oswego (New York) | 4,117.65 mi (6,626.71 km) |
| Formigine to Otsego (Minnesota) | 4,705.42 mi (7,572.64 km) |
| Formigine to Ottawa (Illinois) | 4,703.47 mi (7,569.51 km) |
| Formigine to Ottawa (Kansas) | 5,082.92 mi (8,180.17 km) |
| Formigine to Ottumwa (Iowa) | 4,858.30 mi (7,818.67 km) |
| Formigine to Overland (Missouri) | 4,886.46 mi (7,863.99 km) |
| Formigine to Overland Park (Kansas) | 5,046.82 mi (8,122.08 km) |
| Formigine to Overlea (Maryland) | 4,281.97 mi (6,891.16 km) |
| Formigine to Oviedo (Florida) | 4,955.35 mi (7,974.87 km) |
| Formigine to Owasso (Oklahoma) | 5,217.71 mi (8,397.10 km) |
| Formigine to Owatonna (Minnesota) | 4,745.68 mi (7,637.43 km) |
| Formigine to Owensboro (Kentucky) | 4,797.91 mi (7,721.49 km) |
| Formigine to Owings Mills (Maryland) | 4,291.80 mi (6,906.99 km) |
| Formigine to Owosso (Michigan) | 4,447.72 mi (7,157.92 km) |
