| Vilvoorde to Olympia Heights (Florida) | 4,637.58 mi (7,463.47 km) |
| Vilvoorde to Omaha (Nebraska) | 4,476.90 mi (7,204.87 km) |
| Vilvoorde to On Top of the World Designated Place (Florida) | 4,549.34 mi (7,321.45 km) |
| Vilvoorde to Onalaska (Wisconsin) | 4,174.64 mi (6,718.44 km) |
| Vilvoorde to Oneida (New York) | 3,623.74 mi (5,831.84 km) |
| Vilvoorde to Oneonta (New York) | 3,626.87 mi (5,836.89 km) |
| Vilvoorde to Ontario (California) | 5,592.05 mi (8,999.53 km) |
| Vilvoorde to Ontario (Oregon) | 4,997.95 mi (8,043.42 km) |
| Vilvoorde to Opa-locka (Florida) | 4,625.15 mi (7,443.46 km) |
| Vilvoorde to Opelika (Alabama) | 4,498.94 mi (7,240.34 km) |
| Vilvoorde to Opelousas (Louisiana) | 4,875.29 mi (7,846.02 km) |
| Vilvoorde to Orange (California) | 5,612.41 mi (9,032.30 km) |
| Vilvoorde to Orange (Texas) | 4,962.31 mi (7,986.06 km) |
| Vilvoorde to Orange City (Florida) | 4,516.22 mi (7,268.16 km) |
| Vilvoorde to Orangeburg (South Carolina) | 4,274.39 mi (6,878.97 km) |
