| Herentals to Olympia Heights (Florida) | 4,650.82 mi (7,484.78 km) |
| Herentals to Omaha (Nebraska) | 4,481.20 mi (7,211.80 km) |
| Herentals to On Top of the World Designated Place (Florida) | 4,561.10 mi (7,340.39 km) |
| Herentals to Onalaska (Wisconsin) | 4,179.29 mi (6,725.91 km) |
| Herentals to Oneida (New York) | 3,632.44 mi (5,845.84 km) |
| Herentals to Oneonta (New York) | 3,635.96 mi (5,851.52 km) |
| Herentals to Ontario (California) | 5,592.23 mi (8,999.82 km) |
| Herentals to Ontario (Oregon) | 4,995.85 mi (8,040.05 km) |
| Herentals to Opa-locka (Florida) | 4,638.37 mi (7,464.73 km) |
| Herentals to Opelika (Alabama) | 4,508.81 mi (7,256.23 km) |
| Herentals to Opelousas (Louisiana) | 4,883.96 mi (7,859.97 km) |
| Herentals to Orange (California) | 5,612.58 mi (9,032.57 km) |
| Herentals to Orange (Texas) | 4,970.62 mi (7,999.44 km) |
| Herentals to Orange City (Florida) | 4,528.31 mi (7,287.60 km) |
| Herentals to Orangeburg (South Carolina) | 4,285.21 mi (6,896.37 km) |
