| Laeken to Oswego (Illinois) | 4,173.98 mi (6,717.37 km) |
| Laeken to Oswego (New York) | 3,639.46 mi (5,857.14 km) |
| Laeken to Otsego (Minnesota) | 4,193.45 mi (6,748.71 km) |
| Laeken to Ottawa (Illinois) | 4,207.92 mi (6,771.99 km) |
| Laeken to Ottawa (Kansas) | 4,582.39 mi (7,374.64 km) |
| Laeken to Ottumwa (Iowa) | 4,357.21 mi (7,012.26 km) |
| Laeken to Overland (Missouri) | 4,395.08 mi (7,073.20 km) |
| Laeken to Overland Park (Kansas) | 4,546.68 mi (7,317.18 km) |
| Laeken to Overlea (Maryland) | 3,820.14 mi (6,147.92 km) |
| Laeken to Oviedo (Florida) | 4,523.90 mi (7,280.51 km) |
| Laeken to Owasso (Oklahoma) | 4,721.40 mi (7,598.36 km) |
| Laeken to Owatonna (Minnesota) | 4,236.56 mi (6,818.09 km) |
| Laeken to Owensboro (Kentucky) | 4,316.24 mi (6,946.32 km) |
| Laeken to Owings Mills (Maryland) | 3,829.08 mi (6,162.32 km) |
| Laeken to Owosso (Michigan) | 3,956.06 mi (6,366.66 km) |
