| Cantanhede to Odessa (Texas) | 5,013.91 mi (8,069.11 km) |
| Cantanhede to Ogden (Utah) | 5,036.70 mi (8,105.79 km) |
| Cantanhede to Oildale (California) | 5,588.45 mi (8,993.74 km) |
| Cantanhede to Ojus (Florida) | 4,145.40 mi (6,671.37 km) |
| Cantanhede to Okemos (Michigan) | 3,786.98 mi (6,094.56 km) |
| Cantanhede to Oklahoma City (Oklahoma) | 4,643.75 mi (7,473.40 km) |
| Cantanhede to Okmulgee (Oklahoma) | 4,567.85 mi (7,351.24 km) |
| Cantanhede to Olathe (Kansas) | 4,390.73 mi (7,066.20 km) |
| Cantanhede to Old Jamestown (Missouri) | 4,182.96 mi (6,731.82 km) |
| Cantanhede to Oldsmar (Florida) | 4,195.76 mi (6,752.42 km) |
| Cantanhede to Olean (New York) | 3,526.14 mi (5,674.77 km) |
| Cantanhede to Olive Branch (Mississippi) | 4,299.50 mi (6,919.38 km) |
| Cantanhede to Olivehurst (California) | 5,512.74 mi (8,871.90 km) |
| Cantanhede to Olney (Maryland) | 3,542.90 mi (5,701.75 km) |
| Cantanhede to Olympia (Washington) | 5,176.92 mi (8,331.45 km) |
