| Ada to Oswego (Illinois) | 4,963.13 mi (7,987.38 km) |
| Ada to Oswego (New York) | 4,438.64 mi (7,143.31 km) |
| Ada to Otsego (Minnesota) | 4,963.81 mi (7,988.49 km) |
| Ada to Ottawa (Illinois) | 4,996.99 mi (8,041.88 km) |
| Ada to Ottawa (Kansas) | 5,366.31 mi (8,636.25 km) |
| Ada to Ottumwa (Iowa) | 5,141.09 mi (8,273.78 km) |
| Ada to Overland (Missouri) | 5,186.84 mi (8,347.41 km) |
| Ada to Overland Park (Kansas) | 5,331.07 mi (8,579.53 km) |
| Ada to Overlea (Maryland) | 4,622.62 mi (7,439.38 km) |
| Ada to Oviedo (Florida) | 5,325.15 mi (8,570.00 km) |
| Ada to Owasso (Oklahoma) | 5,508.89 mi (8,865.70 km) |
| Ada to Owatonna (Minnesota) | 5,011.16 mi (8,064.68 km) |
| Ada to Owensboro (Kentucky) | 5,113.37 mi (8,229.17 km) |
| Ada to Owings Mills (Maryland) | 4,631.46 mi (7,453.62 km) |
| Ada to Owosso (Michigan) | 4,748.36 mi (7,641.75 km) |
