| Cantanhede to Orangevale (California) | 5,518.79 mi (8,881.64 km) |
| Cantanhede to Orchards (Washington) | 5,229.34 mi (8,415.81 km) |
| Cantanhede to Orcutt (California) | 5,671.87 mi (9,127.99 km) |
| Cantanhede to Oregon (Ohio) | 3,772.81 mi (6,071.76 km) |
| Cantanhede to Oregon (Wisconsin) | 4,006.18 mi (6,447.32 km) |
| Cantanhede to Oregon City (Oregon) | 5,248.18 mi (8,446.13 km) |
| Cantanhede to Orem (Utah) | 5,066.37 mi (8,153.53 km) |
| Cantanhede to Orinda (California) | 5,594.96 mi (9,004.22 km) |
| Cantanhede to Orland Park (Illinois) | 3,978.91 mi (6,403.43 km) |
| Cantanhede to Orlando (Florida) | 4,111.54 mi (6,616.89 km) |
| Cantanhede to Ormond Beach (Florida) | 4,069.30 mi (6,548.90 km) |
| Cantanhede to Oro Valley (Arizona) | 5,384.32 mi (8,665.23 km) |
| Cantanhede to Oroville (California) | 5,492.64 mi (8,839.56 km) |
| Cantanhede to Oshkosh (Wisconsin) | 3,934.83 mi (6,332.50 km) |
| Cantanhede to Oskaloosa (Iowa) | 4,206.50 mi (6,769.70 km) |
