| Castenaso to Oakley (California) | 6,032.06 mi (9,707.67 km) |
| Castenaso to Oakton (Virginia) | 4,361.68 mi (7,019.45 km) |
| Castenaso to Oakville (Missouri) | 4,921.47 mi (7,920.34 km) |
| Castenaso to Oatfield (Oregon) | 5,617.95 mi (9,041.21 km) |
| Castenaso to Ocala (Florida) | 5,002.07 mi (8,050.06 km) |
| Castenaso to Ocean Acres (New Jersey) | 4,196.49 mi (6,753.59 km) |
| Castenaso to Ocean City (New Jersey) | 4,229.51 mi (6,806.74 km) |
| Castenaso to Ocean Pines (Maryland) | 4,289.20 mi (6,902.79 km) |
| Castenaso to Ocean Pointe (Hawaii) | 7,840.64 mi (12,618.28 km) |
| Castenaso to Ocean Springs (Mississippi) | 5,237.22 mi (8,428.50 km) |
| Castenaso to Oceanside (California) | 6,176.91 mi (9,940.78 km) |
| Castenaso to Oceanside (New York) | 4,133.34 mi (6,651.98 km) |
| Castenaso to Ocoee (Florida) | 5,001.64 mi (8,049.36 km) |
| Castenaso to Oconomowoc (Wisconsin) | 4,637.20 mi (7,462.85 km) |
| Castenaso to Odenton (Maryland) | 4,328.20 mi (6,965.56 km) |
