| Pendleton to Oskaloosa (Iowa) | 1,340.45 mi (2,157.25 km) |
| Pendleton to Oswego (Illinois) | 1,538.30 mi (2,475.66 km) |
| Pendleton to Oswego (New York) | 2,064.59 mi (3,322.63 km) |
| Pendleton to Otsego (Minnesota) | 1,216.30 mi (1,957.44 km) |
| Pendleton to Ottawa (Illinois) | 1,522.84 mi (2,450.78 km) |
| Pendleton to Ottawa (Kansas) | 1,296.14 mi (2,085.94 km) |
| Pendleton to Ottumwa (Iowa) | 1,358.26 mi (2,185.90 km) |
| Pendleton to Overland (Missouri) | 1,524.87 mi (2,454.04 km) |
| Pendleton to Overland Park (Kansas) | 1,313.57 mi (2,113.98 km) |
| Pendleton to Overlea (Maryland) | 2,171.65 mi (3,494.94 km) |
| Pendleton to Oviedo (Florida) | 2,351.93 mi (3,785.07 km) |
| Pendleton to Owasso (Oklahoma) | 1,356.36 mi (2,182.85 km) |
| Pendleton to Owatonna (Minnesota) | 1,252.13 mi (2,015.10 km) |
| Pendleton to Owensboro (Kentucky) | 1,711.06 mi (2,753.69 km) |
| Pendleton to Owings Mills (Maryland) | 2,157.05 mi (3,471.44 km) |
