| Redding to Oskaloosa (Iowa) | 1,544.82 mi (2,486.15 km) |
| Redding to Oswego (Illinois) | 1,761.10 mi (2,834.22 km) |
| Redding to Oswego (New York) | 2,333.16 mi (3,754.85 km) |
| Redding to Otsego (Minnesota) | 1,481.80 mi (2,384.73 km) |
| Redding to Ottawa (Illinois) | 1,739.76 mi (2,799.88 km) |
| Redding to Ottawa (Kansas) | 1,443.81 mi (2,323.58 km) |
| Redding to Ottumwa (Iowa) | 1,559.00 mi (2,508.97 km) |
| Redding to Overland (Missouri) | 1,698.12 mi (2,732.86 km) |
| Redding to Overland Park (Kansas) | 1,469.29 mi (2,364.60 km) |
| Redding to Overlea (Maryland) | 2,401.45 mi (3,864.77 km) |
| Redding to Oviedo (Florida) | 2,456.28 mi (3,953.00 km) |
| Redding to Owasso (Oklahoma) | 1,460.48 mi (2,350.41 km) |
| Redding to Owatonna (Minnesota) | 1,499.80 mi (2,413.70 km) |
| Redding to Owensboro (Kentucky) | 1,885.61 mi (3,034.59 km) |
| Redding to Owings Mills (Maryland) | 2,386.52 mi (3,840.73 km) |
