| Barbastro to Oakley (California) | 5,807.73 mi (9,346.64 km) |
| Barbastro to Oakton (Virginia) | 3,930.87 mi (6,326.13 km) |
| Barbastro to Oakville (Missouri) | 4,538.07 mi (7,303.32 km) |
| Barbastro to Oatfield (Oregon) | 5,441.29 mi (8,756.91 km) |
| Barbastro to Ocala (Florida) | 4,530.43 mi (7,291.02 km) |
| Barbastro to Ocean Acres (New Jersey) | 3,761.14 mi (6,052.97 km) |
| Barbastro to Ocean City (New Jersey) | 3,791.91 mi (6,102.48 km) |
| Barbastro to Ocean Pines (Maryland) | 3,847.36 mi (6,191.73 km) |
| Barbastro to Ocean Pointe (Hawaii) | 7,842.51 mi (12,621.31 km) |
| Barbastro to Ocean Springs (Mississippi) | 4,798.30 mi (7,722.11 km) |
| Barbastro to Oceanside (California) | 5,898.86 mi (9,493.30 km) |
| Barbastro to Oceanside (New York) | 3,702.25 mi (5,958.19 km) |
| Barbastro to Ocoee (Florida) | 4,524.58 mi (7,281.61 km) |
| Barbastro to Oconomowoc (Wisconsin) | 4,278.88 mi (6,886.19 km) |
| Barbastro to Odenton (Maryland) | 3,896.46 mi (6,270.75 km) |
