| Agrate Brianza to Olympia Heights (Florida) | 4,956.28 mi (7,976.36 km) |
| Agrate Brianza to Omaha (Nebraska) | 4,881.44 mi (7,855.93 km) |
| Agrate Brianza to On Top of the World Designated Place (Florida) | 4,887.17 mi (7,865.14 km) |
| Agrate Brianza to Onalaska (Wisconsin) | 4,577.40 mi (7,366.61 km) |
| Agrate Brianza to Oneida (New York) | 3,996.39 mi (6,431.57 km) |
| Agrate Brianza to Oneonta (New York) | 3,995.91 mi (6,430.80 km) |
| Agrate Brianza to Ontario (California) | 6,015.82 mi (9,681.53 km) |
| Agrate Brianza to Ontario (Oregon) | 5,428.12 mi (8,735.71 km) |
| Agrate Brianza to Opa-locka (Florida) | 4,944.24 mi (7,956.99 km) |
| Agrate Brianza to Opelika (Alabama) | 4,858.02 mi (7,818.22 km) |
| Agrate Brianza to Opelousas (Louisiana) | 5,245.46 mi (8,441.76 km) |
| Agrate Brianza to Orange (California) | 6,036.22 mi (9,714.35 km) |
| Agrate Brianza to Orange (Texas) | 5,335.65 mi (8,586.90 km) |
| Agrate Brianza to Orange City (Florida) | 4,850.29 mi (7,805.79 km) |
| Agrate Brianza to Orangeburg (South Carolina) | 4,624.03 mi (7,441.66 km) |
