| Casamassima to Oakley (California) | 6,389.18 mi (10,282.40 km) |
| Casamassima to Oakton (Virginia) | 4,725.56 mi (7,605.06 km) |
| Casamassima to Oakville (Missouri) | 5,290.49 mi (8,514.23 km) |
| Casamassima to Oatfield (Oregon) | 5,966.74 mi (9,602.55 km) |
| Casamassima to Ocala (Florida) | 5,358.16 mi (8,623.13 km) |
| Casamassima to Ocean Acres (New Jersey) | 4,559.48 mi (7,337.78 km) |
| Casamassima to Ocean City (New Jersey) | 4,592.16 mi (7,390.37 km) |
| Casamassima to Ocean Pines (Maryland) | 4,651.16 mi (7,485.33 km) |
| Casamassima to Ocean Pointe (Hawaii) | 8,122.51 mi (13,071.91 km) |
| Casamassima to Ocean Springs (Mississippi) | 5,600.55 mi (9,013.21 km) |
| Casamassima to Oceanside (California) | 6,541.66 mi (10,527.79 km) |
| Casamassima to Oceanside (New York) | 4,496.96 mi (7,237.15 km) |
| Casamassima to Ocoee (Florida) | 5,356.24 mi (8,620.03 km) |
| Casamassima to Oconomowoc (Wisconsin) | 5,006.97 mi (8,057.94 km) |
| Casamassima to Odenton (Maryland) | 4,691.90 mi (7,550.88 km) |
