| Trets to Orangevale (California) | 5,863.42 mi (9,436.27 km) |
| Trets to Orchards (Washington) | 5,508.63 mi (8,865.28 km) |
| Trets to Orcutt (California) | 6,051.61 mi (9,739.12 km) |
| Trets to Oregon (Ohio) | 4,302.06 mi (6,923.49 km) |
| Trets to Oregon (Wisconsin) | 4,496.75 mi (7,236.83 km) |
| Trets to Oregon City (Oregon) | 5,529.92 mi (8,899.54 km) |
| Trets to Orem (Utah) | 5,461.34 mi (8,789.18 km) |
| Trets to Orinda (California) | 5,938.98 mi (9,557.87 km) |
| Trets to Orland Park (Illinois) | 4,489.19 mi (7,224.66 km) |
| Trets to Orlando (Florida) | 4,756.10 mi (7,654.21 km) |
| Trets to Ormond Beach (Florida) | 4,709.43 mi (7,579.10 km) |
| Trets to Oro Valley (Arizona) | 5,846.99 mi (9,409.82 km) |
| Trets to Oroville (California) | 5,828.49 mi (9,380.05 km) |
| Trets to Oshkosh (Wisconsin) | 4,418.18 mi (7,110.37 km) |
| Trets to Oskaloosa (Iowa) | 4,697.48 mi (7,559.86 km) |
