| San Giovanni Rotondo to Oswego (Illinois) | 4,983.85 mi (8,020.73 km) |
| San Giovanni Rotondo to Oswego (New York) | 4,430.74 mi (7,130.58 km) |
| San Giovanni Rotondo to Otsego (Minnesota) | 5,018.74 mi (8,076.89 km) |
| San Giovanni Rotondo to Ottawa (Illinois) | 5,017.79 mi (8,075.36 km) |
| San Giovanni Rotondo to Ottawa (Kansas) | 5,397.27 mi (8,686.07 km) |
| San Giovanni Rotondo to Ottumwa (Iowa) | 5,172.63 mi (8,324.55 km) |
| San Giovanni Rotondo to Overland (Missouri) | 5,200.59 mi (8,369.54 km) |
| San Giovanni Rotondo to Overland Park (Kansas) | 5,361.18 mi (8,627.98 km) |
| San Giovanni Rotondo to Overlea (Maryland) | 4,592.54 mi (7,390.98 km) |
| San Giovanni Rotondo to Oviedo (Florida) | 5,258.57 mi (8,462.85 km) |
| San Giovanni Rotondo to Owasso (Oklahoma) | 5,532.04 mi (8,902.96 km) |
| San Giovanni Rotondo to Owatonna (Minnesota) | 5,059.44 mi (8,142.38 km) |
| San Giovanni Rotondo to Owensboro (Kentucky) | 5,111.22 mi (8,225.71 km) |
| San Giovanni Rotondo to Owings Mills (Maryland) | 4,602.53 mi (7,407.06 km) |
| San Giovanni Rotondo to Owosso (Michigan) | 4,761.91 mi (7,663.56 km) |
