| Alcazar de San Juan to Oakley (California) | 5,820.65 mi (9,367.43 km) |
| Alcazar de San Juan to Oakton (Virginia) | 3,849.38 mi (6,194.97 km) |
| Alcazar de San Juan to Oakville (Missouri) | 4,479.83 mi (7,209.59 km) |
| Alcazar de San Juan to Oatfield (Oregon) | 5,478.08 mi (8,816.12 km) |
| Alcazar de San Juan to Ocala (Florida) | 4,419.91 mi (7,113.16 km) |
| Alcazar de San Juan to Ocean Acres (New Jersey) | 3,678.09 mi (5,919.31 km) |
| Alcazar de San Juan to Ocean City (New Jersey) | 3,707.25 mi (5,966.24 km) |
| Alcazar de San Juan to Ocean Pines (Maryland) | 3,759.71 mi (6,050.67 km) |
| Alcazar de San Juan to Ocean Pointe (Hawaii) | 7,937.33 mi (12,773.89 km) |
| Alcazar de San Juan to Ocean Springs (Mississippi) | 4,706.64 mi (7,574.61 km) |
| Alcazar de San Juan to Oceanside (California) | 5,885.99 mi (9,472.59 km) |
| Alcazar de San Juan to Oceanside (New York) | 3,622.23 mi (5,829.42 km) |
| Alcazar de San Juan to Ocoee (Florida) | 4,410.59 mi (7,098.15 km) |
| Alcazar de San Juan to Oconomowoc (Wisconsin) | 4,236.08 mi (6,817.31 km) |
| Alcazar de San Juan to Odenton (Maryland) | 3,814.65 mi (6,139.08 km) |
