| Pasco to Orangeburg (South Carolina) | 2,185.63 mi (3,517.44 km) |
| Pasco to Orangevale (California) | 533.21 mi (858.13 km) |
| Pasco to Orchards (Washington) | 167.81 mi (270.07 km) |
| Pasco to Orcutt (California) | 789.27 mi (1,270.21 km) |
| Pasco to Oregon (Ohio) | 1,788.26 mi (2,877.93 km) |
| Pasco to Oregon (Wisconsin) | 1,472.50 mi (2,369.75 km) |
| Pasco to Oregon City (Oregon) | 178.18 mi (286.75 km) |
| Pasco to Orem (Utah) | 555.29 mi (893.65 km) |
| Pasco to Orinda (California) | 598.94 mi (963.90 km) |
| Pasco to Orland Park (Illinois) | 1,577.87 mi (2,539.34 km) |
| Pasco to Orlando (Florida) | 2,379.27 mi (3,829.06 km) |
| Pasco to Ormond Beach (Florida) | 2,352.83 mi (3,786.52 km) |
| Pasco to Oro Valley (Arizona) | 1,048.82 mi (1,687.91 km) |
| Pasco to Oroville (California) | 482.36 mi (776.28 km) |
| Pasco to Oshkosh (Wisconsin) | 1,488.52 mi (2,395.54 km) |
