| Settimo Torinese to Olympia Heights (Florida) | 4,892.78 mi (7,874.17 km) |
| Settimo Torinese to Omaha (Nebraska) | 4,841.83 mi (7,792.18 km) |
| Settimo Torinese to On Top of the World Designated Place (Florida) | 4,827.43 mi (7,769.00 km) |
| Settimo Torinese to Onalaska (Wisconsin) | 4,537.16 mi (7,301.86 km) |
| Settimo Torinese to Oneida (New York) | 3,945.91 mi (6,350.33 km) |
| Settimo Torinese to Oneonta (New York) | 3,944.40 mi (6,347.90 km) |
| Settimo Torinese to Ontario (California) | 5,987.40 mi (9,635.79 km) |
| Settimo Torinese to Ontario (Oregon) | 5,407.14 mi (8,701.96 km) |
| Settimo Torinese to Opa-locka (Florida) | 4,880.82 mi (7,854.92 km) |
| Settimo Torinese to Opelika (Alabama) | 4,803.19 mi (7,729.99 km) |
| Settimo Torinese to Opelousas (Louisiana) | 5,193.35 mi (8,357.89 km) |
| Settimo Torinese to Orange (California) | 6,007.82 mi (9,668.65 km) |
| Settimo Torinese to Orange (Texas) | 5,284.40 mi (8,504.42 km) |
| Settimo Torinese to Orange City (Florida) | 4,789.80 mi (7,708.44 km) |
| Settimo Torinese to Orangeburg (South Carolina) | 4,567.08 mi (7,350.01 km) |
