| Torhout to Olympia Heights (Florida) | 4,579.36 mi (7,369.77 km) |
| Torhout to Omaha (Nebraska) | 4,424.21 mi (7,120.08 km) |
| Torhout to On Top of the World Designated Place (Florida) | 4,491.47 mi (7,228.33 km) |
| Torhout to Onalaska (Wisconsin) | 4,121.63 mi (6,633.12 km) |
| Torhout to Oneida (New York) | 3,567.40 mi (5,741.18 km) |
| Torhout to Oneonta (New York) | 3,570.29 mi (5,745.83 km) |
| Torhout to Ontario (California) | 5,544.14 mi (8,922.43 km) |
| Torhout to Ontario (Oregon) | 4,953.32 mi (7,971.60 km) |
| Torhout to Opa-locka (Florida) | 4,566.93 mi (7,349.77 km) |
| Torhout to Opelika (Alabama) | 4,441.89 mi (7,148.53 km) |
| Torhout to Opelousas (Louisiana) | 4,818.94 mi (7,755.33 km) |
| Torhout to Orange (California) | 5,564.52 mi (8,955.22 km) |
| Torhout to Orange (Texas) | 4,906.19 mi (7,895.76 km) |
| Torhout to Orange City (Florida) | 4,458.26 mi (7,174.88 km) |
| Torhout to Orangeburg (South Carolina) | 4,216.90 mi (6,786.44 km) |
