| Pasco to Oskaloosa (Iowa) | 1,358.33 mi (2,186.02 km) |
| Pasco to Oswego (Illinois) | 1,553.18 mi (2,499.59 km) |
| Pasco to Oswego (New York) | 2,071.82 mi (3,334.27 km) |
| Pasco to Otsego (Minnesota) | 1,226.31 mi (1,973.55 km) |
| Pasco to Ottawa (Illinois) | 1,538.52 mi (2,476.01 km) |
| Pasco to Ottawa (Kansas) | 1,320.46 mi (2,125.08 km) |
| Pasco to Ottumwa (Iowa) | 1,376.51 mi (2,215.27 km) |
| Pasco to Overland (Missouri) | 1,545.69 mi (2,487.55 km) |
| Pasco to Overland Park (Kansas) | 1,337.00 mi (2,151.69 km) |
| Pasco to Overlea (Maryland) | 2,184.19 mi (3,515.12 km) |
| Pasco to Oviedo (Florida) | 2,377.85 mi (3,826.78 km) |
| Pasco to Owasso (Oklahoma) | 1,384.49 mi (2,228.13 km) |
| Pasco to Owatonna (Minnesota) | 1,264.64 mi (2,035.25 km) |
| Pasco to Owensboro (Kentucky) | 1,731.22 mi (2,786.12 km) |
| Pasco to Owings Mills (Maryland) | 2,169.66 mi (3,491.73 km) |
