| Dent to Orangevale (California) | 1,951.64 mi (3,140.87 km) |
| Dent to Orchards (Washington) | 1,963.01 mi (3,159.16 km) |
| Dent to Orcutt (California) | 1,982.04 mi (3,189.79 km) |
| Dent to Oregon (Ohio) | 181.88 mi (292.71 km) |
| Dent to Oregon (Wisconsin) | 356.61 mi (573.91 km) |
| Dent to Oregon City (Oregon) | 1,966.33 mi (3,164.50 km) |
| Dent to Orem (Utah) | 1,432.94 mi (2,306.10 km) |
| Dent to Orinda (California) | 2,015.24 mi (3,243.21 km) |
| Dent to Orland Park (Illinois) | 237.13 mi (381.63 km) |
| Dent to Orlando (Florida) | 764.29 mi (1,230.00 km) |
| Dent to Ormond Beach (Florida) | 712.94 mi (1,147.37 km) |
| Dent to Oro Valley (Arizona) | 1,540.68 mi (2,479.48 km) |
| Dent to Oroville (California) | 1,957.92 mi (3,150.97 km) |
| Dent to Oshkosh (Wisconsin) | 389.83 mi (627.37 km) |
| Dent to Oskaloosa (Iowa) | 445.01 mi (716.17 km) |
