| Madeley to Odessa (Texas) | 4,882.01 mi (7,856.84 km) |
| Madeley to Ogden (Utah) | 4,712.39 mi (7,583.86 km) |
| Madeley to Oildale (California) | 5,261.09 mi (8,466.91 km) |
| Madeley to Ojus (Florida) | 4,308.29 mi (6,933.52 km) |
| Madeley to Okemos (Michigan) | 3,664.03 mi (5,896.69 km) |
| Madeley to Oklahoma City (Oklahoma) | 4,513.22 mi (7,263.32 km) |
| Madeley to Okmulgee (Oklahoma) | 4,449.10 mi (7,160.13 km) |
| Madeley to Olathe (Kansas) | 4,239.24 mi (6,822.39 km) |
| Madeley to Old Jamestown (Missouri) | 4,070.68 mi (6,551.13 km) |
| Madeley to Oldsmar (Florida) | 4,305.07 mi (6,928.34 km) |
| Madeley to Olean (New York) | 3,459.99 mi (5,568.31 km) |
| Madeley to Olive Branch (Mississippi) | 4,245.40 mi (6,832.32 km) |
| Madeley to Olivehurst (California) | 5,128.39 mi (8,253.35 km) |
| Madeley to Olney (Maryland) | 3,537.79 mi (5,693.52 km) |
| Madeley to Olympia (Washington) | 4,709.01 mi (7,578.42 km) |
