| Wetteren to Olympia Heights (Florida) | 4,613.52 mi (7,424.74 km) |
| Wetteren to Omaha (Nebraska) | 4,454.76 mi (7,169.25 km) |
| Wetteren to On Top of the World Designated Place (Florida) | 4,525.36 mi (7,282.86 km) |
| Wetteren to Onalaska (Wisconsin) | 4,152.38 mi (6,682.62 km) |
| Wetteren to Oneida (New York) | 3,600.26 mi (5,794.06 km) |
| Wetteren to Oneonta (New York) | 3,603.31 mi (5,798.97 km) |
| Wetteren to Ontario (California) | 5,571.76 mi (8,966.88 km) |
| Wetteren to Ontario (Oregon) | 4,978.94 mi (8,012.82 km) |
| Wetteren to Opa-locka (Florida) | 4,601.09 mi (7,404.74 km) |
| Wetteren to Opelika (Alabama) | 4,475.22 mi (7,202.16 km) |
| Wetteren to Opelousas (Louisiana) | 4,851.81 mi (7,808.23 km) |
| Wetteren to Orange (California) | 5,592.13 mi (8,999.66 km) |
| Wetteren to Orange (Texas) | 4,938.91 mi (7,948.41 km) |
| Wetteren to Orange City (Florida) | 4,492.22 mi (7,229.52 km) |
| Wetteren to Orangeburg (South Carolina) | 4,250.53 mi (6,840.56 km) |
