| Brussels to Orangevale (California) | 5,429.29 mi (8,737.60 km) |
| Brussels to Orchards (Washington) | 5,052.94 mi (8,131.91 km) |
| Brussels to Orcutt (California) | 5,630.86 mi (9,061.99 km) |
| Brussels to Oregon (Ohio) | 3,990.14 mi (6,421.50 km) |
| Brussels to Oregon (Wisconsin) | 4,154.96 mi (6,686.76 km) |
| Brussels to Oregon City (Oregon) | 5,074.90 mi (8,167.26 km) |
| Brussels to Orem (Utah) | 5,053.44 mi (8,132.72 km) |
| Brussels to Orinda (California) | 5,503.95 mi (8,857.75 km) |
| Brussels to Orland Park (Illinois) | 4,160.75 mi (6,696.08 km) |
| Brussels to Orlando (Florida) | 4,539.66 mi (7,305.87 km) |
| Brussels to Ormond Beach (Florida) | 4,488.86 mi (7,224.13 km) |
| Brussels to Oro Valley (Arizona) | 5,470.79 mi (8,804.38 km) |
| Brussels to Oroville (California) | 5,391.10 mi (8,676.14 km) |
| Brussels to Oshkosh (Wisconsin) | 4,072.91 mi (6,554.71 km) |
| Brussels to Oskaloosa (Iowa) | 4,352.98 mi (7,005.44 km) |
