| Boortmeerbeek to Oakley (California) | 5,482.53 mi (8,823.27 km) |
| Boortmeerbeek to Oakton (Virginia) | 3,879.22 mi (6,243.01 km) |
| Boortmeerbeek to Oakville (Missouri) | 4,409.86 mi (7,096.99 km) |
| Boortmeerbeek to Oatfield (Oregon) | 5,068.59 mi (8,157.10 km) |
| Boortmeerbeek to Ocala (Florida) | 4,544.88 mi (7,314.28 km) |
| Boortmeerbeek to Ocean Acres (New Jersey) | 3,718.33 mi (5,984.08 km) |
| Boortmeerbeek to Ocean City (New Jersey) | 3,752.61 mi (6,039.25 km) |
| Boortmeerbeek to Ocean Pines (Maryland) | 3,814.72 mi (6,139.20 km) |
| Boortmeerbeek to Ocean Pointe (Hawaii) | 7,330.40 mi (11,797.15 km) |
| Boortmeerbeek to Ocean Springs (Mississippi) | 4,754.10 mi (7,650.98 km) |
| Boortmeerbeek to Oceanside (California) | 5,631.87 mi (9,063.62 km) |
| Boortmeerbeek to Oceanside (New York) | 3,652.89 mi (5,878.76 km) |
| Boortmeerbeek to Ocoee (Florida) | 4,549.11 mi (7,321.08 km) |
| Boortmeerbeek to Oconomowoc (Wisconsin) | 4,116.63 mi (6,625.07 km) |
| Boortmeerbeek to Odenton (Maryland) | 3,846.60 mi (6,190.50 km) |
