| Prairie Ridge to Oskaloosa (Iowa) | 1,505.72 mi (2,423.22 km) |
| Prairie Ridge to Oswego (Illinois) | 1,696.32 mi (2,729.97 km) |
| Prairie Ridge to Oswego (New York) | 2,201.02 mi (3,542.19 km) |
| Prairie Ridge to Otsego (Minnesota) | 1,362.33 mi (2,192.45 km) |
| Prairie Ridge to Ottawa (Illinois) | 1,682.83 mi (2,708.25 km) |
| Prairie Ridge to Ottawa (Kansas) | 1,473.98 mi (2,372.14 km) |
| Prairie Ridge to Ottumwa (Iowa) | 1,524.32 mi (2,453.15 km) |
| Prairie Ridge to Overland (Missouri) | 1,696.18 mi (2,729.74 km) |
| Prairie Ridge to Overland Park (Kansas) | 1,489.88 mi (2,397.74 km) |
| Prairie Ridge to Overlea (Maryland) | 2,323.04 mi (3,738.58 km) |
| Prairie Ridge to Oviedo (Florida) | 2,532.11 mi (4,075.05 km) |
| Prairie Ridge to Owasso (Oklahoma) | 1,539.72 mi (2,477.94 km) |
| Prairie Ridge to Owatonna (Minnesota) | 1,404.70 mi (2,260.65 km) |
| Prairie Ridge to Owensboro (Kentucky) | 1,880.91 mi (3,027.03 km) |
| Prairie Ridge to Owings Mills (Maryland) | 2,308.64 mi (3,715.39 km) |
