| Imperial to Orangevale (California) | 513.20 mi (825.92 km) |
| Imperial to Orchards (Washington) | 961.78 mi (1,547.84 km) |
| Imperial to Orcutt (California) | 311.60 mi (501.47 km) |
| Imperial to Oregon (Ohio) | 1,856.97 mi (2,988.50 km) |
| Imperial to Oregon (Wisconsin) | 1,579.88 mi (2,542.57 km) |
| Imperial to Oregon City (Oregon) | 941.40 mi (1,515.04 km) |
| Imperial to Orem (Utah) | 558.22 mi (898.37 km) |
| Imperial to Orinda (California) | 509.58 mi (820.09 km) |
| Imperial to Orland Park (Illinois) | 1,631.60 mi (2,625.80 km) |
| Imperial to Orlando (Florida) | 2,047.99 mi (3,295.91 km) |
| Imperial to Ormond Beach (Florida) | 2,045.62 mi (3,292.11 km) |
| Imperial to Oro Valley (Arizona) | 268.93 mi (432.80 km) |
| Imperial to Oroville (California) | 568.44 mi (914.81 km) |
| Imperial to Oshkosh (Wisconsin) | 1,642.92 mi (2,644.02 km) |
| Imperial to Oskaloosa (Iowa) | 1,387.02 mi (2,232.20 km) |
