| Sint-Lievens-Houtem to Olympia Heights (Florida) | 4,614.08 mi (7,425.65 km) |
| Sint-Lievens-Houtem to Omaha (Nebraska) | 4,457.46 mi (7,173.59 km) |
| Sint-Lievens-Houtem to On Top of the World Designated Place (Florida) | 4,526.32 mi (7,284.40 km) |
| Sint-Lievens-Houtem to Onalaska (Wisconsin) | 4,155.01 mi (6,686.85 km) |
| Sint-Lievens-Houtem to Oneida (New York) | 3,601.99 mi (5,796.84 km) |
| Sint-Lievens-Houtem to Oneonta (New York) | 3,604.95 mi (5,801.60 km) |
| Sint-Lievens-Houtem to Ontario (California) | 5,575.26 mi (8,972.51 km) |
| Sint-Lievens-Houtem to Ontario (Oregon) | 4,982.85 mi (8,019.12 km) |
| Sint-Lievens-Houtem to Opa-locka (Florida) | 4,601.66 mi (7,405.66 km) |
| Sint-Lievens-Houtem to Opelika (Alabama) | 4,476.65 mi (7,204.47 km) |
| Sint-Lievens-Houtem to Opelousas (Louisiana) | 4,853.53 mi (7,811.00 km) |
| Sint-Lievens-Houtem to Orange (California) | 5,595.63 mi (9,005.29 km) |
| Sint-Lievens-Houtem to Orange (Texas) | 4,940.72 mi (7,951.32 km) |
| Sint-Lievens-Houtem to Orange City (Florida) | 4,493.09 mi (7,230.93 km) |
| Sint-Lievens-Houtem to Orangeburg (South Carolina) | 4,251.73 mi (6,842.50 km) |
