| Ospitaletto to Oakley (California) | 5,933.60 mi (9,549.21 km) |
| Ospitaletto to Oakton (Virginia) | 4,267.17 mi (6,867.35 km) |
| Ospitaletto to Oakville (Missouri) | 4,824.01 mi (7,763.50 km) |
| Ospitaletto to Oatfield (Oregon) | 5,520.83 mi (8,884.92 km) |
| Ospitaletto to Ocala (Florida) | 4,910.82 mi (7,903.20 km) |
| Ospitaletto to Ocean Acres (New Jersey) | 4,102.41 mi (6,602.19 km) |
| Ospitaletto to Ocean City (New Jersey) | 4,135.59 mi (6,655.59 km) |
| Ospitaletto to Ocean Pines (Maryland) | 4,195.58 mi (6,752.13 km) |
| Ospitaletto to Ocean Pointe (Hawaii) | 7,756.40 mi (12,482.73 km) |
| Ospitaletto to Ocean Springs (Mississippi) | 5,142.87 mi (8,276.66 km) |
| Ospitaletto to Oceanside (California) | 6,077.62 mi (9,780.98 km) |
| Ospitaletto to Oceanside (New York) | 4,038.99 mi (6,500.12 km) |
| Ospitaletto to Ocoee (Florida) | 4,910.98 mi (7,903.46 km) |
| Ospitaletto to Oconomowoc (Wisconsin) | 4,538.92 mi (7,304.69 km) |
| Ospitaletto to Odenton (Maryland) | 4,233.77 mi (6,813.60 km) |
