| Castel San Giorgio to Oak Harbor (Washington) | 5,753.07 mi (9,258.67 km) |
| Castel San Giorgio to Oak Hills (Oregon) | 5,921.39 mi (9,529.55 km) |
| Castel San Giorgio to Oak Lawn (Illinois) | 4,959.11 mi (7,980.91 km) |
| Castel San Giorgio to Oak Park (California) | 6,471.48 mi (10,414.85 km) |
| Castel San Giorgio to Oak Park (Illinois) | 4,953.08 mi (7,971.21 km) |
| Castel San Giorgio to Oak Park (Michigan) | 4,741.84 mi (7,631.25 km) |
| Castel San Giorgio to Oak Ridge (Florida) | 5,256.96 mi (8,460.27 km) |
| Castel San Giorgio to Oak Ridge (New Jersey) | 4,428.80 mi (7,127.47 km) |
| Castel San Giorgio to Oak Ridge (Tennessee) | 5,062.71 mi (8,147.65 km) |
| Castel San Giorgio to Oakdale (California) | 6,326.44 mi (10,181.43 km) |
| Castel San Giorgio to Oakdale (Minnesota) | 5,015.16 mi (8,071.13 km) |
| Castel San Giorgio to Oakland (California) | 6,363.96 mi (10,241.81 km) |
| Castel San Giorgio to Oakland (New Jersey) | 4,417.59 mi (7,109.42 km) |
| Castel San Giorgio to Oakland Park (Florida) | 5,296.88 mi (8,524.51 km) |
| Castel San Giorgio to Oakleaf Plantation (Florida) | 5,202.64 mi (8,372.84 km) |
