| Castellon de la Plana to Oakley (California) | 5,907.05 mi (9,506.48 km) |
| Castellon de la Plana to Oakton (Virginia) | 3,984.38 mi (6,412.23 km) |
| Castellon de la Plana to Oakville (Missouri) | 4,604.22 mi (7,409.78 km) |
| Castellon de la Plana to Oatfield (Oregon) | 5,549.65 mi (8,931.30 km) |
| Castellon de la Plana to Ocala (Florida) | 4,567.65 mi (7,350.92 km) |
| Castellon de la Plana to Ocean Acres (New Jersey) | 3,813.68 mi (6,137.53 km) |
| Castellon de la Plana to Ocean City (New Jersey) | 3,843.58 mi (6,185.65 km) |
| Castellon de la Plana to Ocean Pines (Maryland) | 3,897.42 mi (6,272.29 km) |
| Castellon de la Plana to Ocean Pointe (Hawaii) | 7,970.42 mi (12,827.15 km) |
| Castellon de la Plana to Ocean Springs (Mississippi) | 4,846.64 mi (7,799.92 km) |
| Castellon de la Plana to Oceanside (California) | 5,987.32 mi (9,635.66 km) |
| Castellon de la Plana to Oceanside (New York) | 3,756.40 mi (6,045.35 km) |
| Castellon de la Plana to Ocoee (Florida) | 4,559.69 mi (7,338.12 km) |
| Castellon de la Plana to Oconomowoc (Wisconsin) | 4,352.56 mi (7,004.77 km) |
| Castellon de la Plana to Odenton (Maryland) | 3,949.77 mi (6,356.54 km) |
