| Castelginest to Oakley (California) | 5,766.84 mi (9,280.83 km) |
| Castelginest to Oakton (Virginia) | 3,943.04 mi (6,345.71 km) |
| Castelginest to Oakville (Missouri) | 4,536.35 mi (7,300.55 km) |
| Castelginest to Oatfield (Oregon) | 5,389.14 mi (8,672.99 km) |
| Castelginest to Ocala (Florida) | 4,557.59 mi (7,334.73 km) |
| Castelginest to Ocean Acres (New Jersey) | 3,774.55 mi (6,074.55 km) |
| Castelginest to Ocean City (New Jersey) | 3,806.13 mi (6,125.37 km) |
| Castelginest to Ocean Pines (Maryland) | 3,863.11 mi (6,217.07 km) |
| Castelginest to Ocean Pointe (Hawaii) | 7,760.12 mi (12,488.70 km) |
| Castelginest to Ocean Springs (Mississippi) | 4,814.38 mi (7,748.00 km) |
| Castelginest to Oceanside (California) | 5,870.91 mi (9,448.31 km) |
| Castelginest to Oceanside (New York) | 3,714.13 mi (5,977.32 km) |
| Castelginest to Ocoee (Florida) | 4,553.73 mi (7,328.52 km) |
| Castelginest to Oconomowoc (Wisconsin) | 4,269.43 mi (6,870.98 km) |
| Castelginest to Odenton (Maryland) | 3,908.88 mi (6,290.74 km) |
