| El Prat de Llobregat to Oak Harbor (Washington) | 5,387.41 mi (8,670.20 km) |
| El Prat de Llobregat to Oak Hills (Oregon) | 5,541.78 mi (8,918.64 km) |
| El Prat de Llobregat to Oak Lawn (Illinois) | 4,410.94 mi (7,098.73 km) |
| El Prat de Llobregat to Oak Park (California) | 6,011.11 mi (9,673.95 km) |
| El Prat de Llobregat to Oak Park (Illinois) | 4,405.99 mi (7,090.75 km) |
| El Prat de Llobregat to Oak Park (Michigan) | 4,184.72 mi (6,734.65 km) |
| El Prat de Llobregat to Oak Ridge (Florida) | 4,635.00 mi (7,459.31 km) |
| El Prat de Llobregat to Oak Ridge (New Jersey) | 3,842.15 mi (6,183.35 km) |
| El Prat de Llobregat to Oak Ridge (Tennessee) | 4,475.96 mi (7,203.36 km) |
| El Prat de Llobregat to Oakdale (California) | 5,895.31 mi (9,487.59 km) |
| El Prat de Llobregat to Oakdale (Minnesota) | 4,502.59 mi (7,246.22 km) |
| El Prat de Llobregat to Oakland (California) | 5,940.69 mi (9,560.61 km) |
| El Prat de Llobregat to Oakland (New Jersey) | 3,830.35 mi (6,164.36 km) |
| El Prat de Llobregat to Oakland Park (Florida) | 4,665.81 mi (7,508.89 km) |
| El Prat de Llobregat to Oakleaf Plantation (Florida) | 4,587.09 mi (7,382.21 km) |
