| Cantanhede to Oakley (California) | 5,570.81 mi (8,965.35 km) |
| Cantanhede to Oakton (Virginia) | 3,561.59 mi (5,731.82 km) |
| Cantanhede to Oakville (Missouri) | 4,198.16 mi (6,756.29 km) |
| Cantanhede to Oatfield (Oregon) | 5,244.84 mi (8,440.75 km) |
| Cantanhede to Ocala (Florida) | 4,127.36 mi (6,642.34 km) |
| Cantanhede to Ocean Acres (New Jersey) | 3,390.07 mi (5,455.79 km) |
| Cantanhede to Ocean City (New Jersey) | 3,418.83 mi (5,502.08 km) |
| Cantanhede to Ocean Pines (Maryland) | 3,470.61 mi (5,585.40 km) |
| Cantanhede to Ocean Pointe (Hawaii) | 7,744.56 mi (12,463.66 km) |
| Cantanhede to Ocean Springs (Mississippi) | 4,416.30 mi (7,107.35 km) |
| Cantanhede to Oceanside (California) | 5,621.65 mi (9,047.18 km) |
| Cantanhede to Oceanside (New York) | 3,334.99 mi (5,367.15 km) |
| Cantanhede to Ocoee (Florida) | 4,117.82 mi (6,626.99 km) |
| Cantanhede to Oconomowoc (Wisconsin) | 3,960.48 mi (6,373.78 km) |
| Cantanhede to Odenton (Maryland) | 3,526.81 mi (5,675.85 km) |
