| Brussels to Oakley (California) | 5,483.68 mi (8,825.13 km) |
| Brussels to Oakton (Virginia) | 3,874.08 mi (6,234.73 km) |
| Brussels to Oakville (Missouri) | 4,406.40 mi (7,091.42 km) |
| Brussels to Oatfield (Oregon) | 5,070.79 mi (8,160.64 km) |
| Brussels to Ocala (Florida) | 4,538.73 mi (7,304.38 km) |
| Brussels to Ocean Acres (New Jersey) | 3,712.96 mi (5,975.43 km) |
| Brussels to Ocean City (New Jersey) | 3,747.19 mi (6,030.52 km) |
| Brussels to Ocean Pines (Maryland) | 3,809.20 mi (6,130.31 km) |
| Brussels to Ocean Pointe (Hawaii) | 7,336.71 mi (11,807.29 km) |
| Brussels to Ocean Springs (Mississippi) | 4,749.10 mi (7,642.93 km) |
| Brussels to Oceanside (California) | 5,631.72 mi (9,063.38 km) |
| Brussels to Oceanside (New York) | 3,647.62 mi (5,870.28 km) |
| Brussels to Ocoee (Florida) | 4,542.77 mi (7,310.89 km) |
| Brussels to Oconomowoc (Wisconsin) | 4,113.77 mi (6,620.48 km) |
| Brussels to Odenton (Maryland) | 3,841.41 mi (6,182.15 km) |
