| Cesano Maderno to Olympia Heights (Florida) | 4,945.87 mi (7,959.61 km) |
| Cesano Maderno to Omaha (Nebraska) | 4,871.75 mi (7,840.33 km) |
| Cesano Maderno to On Top of the World Designated Place (Florida) | 4,876.78 mi (7,848.42 km) |
| Cesano Maderno to Onalaska (Wisconsin) | 4,567.67 mi (7,350.96 km) |
| Cesano Maderno to Oneida (New York) | 3,986.23 mi (6,415.21 km) |
| Cesano Maderno to Oneonta (New York) | 3,985.71 mi (6,414.38 km) |
| Cesano Maderno to Ontario (California) | 6,006.81 mi (9,667.03 km) |
| Cesano Maderno to Ontario (Oregon) | 5,419.63 mi (8,722.05 km) |
| Cesano Maderno to Opa-locka (Florida) | 4,933.83 mi (7,940.24 km) |
| Cesano Maderno to Opelika (Alabama) | 4,847.72 mi (7,801.66 km) |
| Cesano Maderno to Opelousas (Louisiana) | 5,235.25 mi (8,425.32 km) |
| Cesano Maderno to Orange (California) | 6,027.21 mi (9,699.86 km) |
| Cesano Maderno to Orange (Texas) | 5,325.47 mi (8,570.51 km) |
| Cesano Maderno to Orange City (Florida) | 4,839.90 mi (7,789.06 km) |
| Cesano Maderno to Orangeburg (South Carolina) | 4,613.69 mi (7,425.02 km) |
