| Castel Gandolfo to Oak Harbor (Washington) | 5,644.77 mi (9,084.39 km) |
| Castel Gandolfo to Oak Hills (Oregon) | 5,811.66 mi (9,352.96 km) |
| Castel Gandolfo to Oak Lawn (Illinois) | 4,834.62 mi (7,780.56 km) |
| Castel Gandolfo to Oak Park (California) | 6,353.78 mi (10,225.42 km) |
| Castel Gandolfo to Oak Park (Illinois) | 4,828.63 mi (7,770.93 km) |
| Castel Gandolfo to Oak Park (Michigan) | 4,616.96 mi (7,430.28 km) |
| Castel Gandolfo to Oak Ridge (Florida) | 5,132.41 mi (8,259.81 km) |
| Castel Gandolfo to Oak Ridge (New Jersey) | 4,303.32 mi (6,925.53 km) |
| Castel Gandolfo to Oak Ridge (Tennessee) | 4,937.24 mi (7,945.72 km) |
| Castel Gandolfo to Oakdale (California) | 6,211.50 mi (9,996.44 km) |
| Castel Gandolfo to Oakdale (Minnesota) | 4,892.62 mi (7,873.91 km) |
| Castel Gandolfo to Oakland (California) | 6,249.85 mi (10,058.17 km) |
| Castel Gandolfo to Oakland (New Jersey) | 4,292.11 mi (6,907.48 km) |
| Castel Gandolfo to Oakland Park (Florida) | 5,173.14 mi (8,325.36 km) |
| Castel Gandolfo to Oakleaf Plantation (Florida) | 5,077.71 mi (8,171.79 km) |
