| Trevignano to Oakley (California) | 5,980.15 mi (9,624.13 km) |
| Trevignano to Oakton (Virginia) | 4,347.03 mi (6,995.87 km) |
| Trevignano to Oakville (Missouri) | 4,896.45 mi (7,880.08 km) |
| Trevignano to Oatfield (Oregon) | 5,560.57 mi (8,948.87 km) |
| Trevignano to Ocala (Florida) | 4,995.56 mi (8,039.58 km) |
| Trevignano to Ocean Acres (New Jersey) | 4,183.10 mi (6,732.05 km) |
| Trevignano to Ocean City (New Jersey) | 4,216.54 mi (6,785.87 km) |
| Trevignano to Ocean Pines (Maryland) | 4,277.03 mi (6,883.21 km) |
| Trevignano to Ocean Pointe (Hawaii) | 7,762.88 mi (12,493.15 km) |
| Trevignano to Ocean Springs (Mississippi) | 5,222.87 mi (8,405.39 km) |
| Trevignano to Oceanside (California) | 6,132.35 mi (9,869.06 km) |
| Trevignano to Oceanside (New York) | 4,119.18 mi (6,629.18 km) |
| Trevignano to Ocoee (Florida) | 4,996.46 mi (8,041.02 km) |
| Trevignano to Oconomowoc (Wisconsin) | 4,608.13 mi (7,416.08 km) |
| Trevignano to Odenton (Maryland) | 4,313.80 mi (6,942.39 km) |
