| Deltona to Orangevale (California) | 2,373.84 mi (3,820.33 km) |
| Deltona to Orchards (Washington) | 2,513.14 mi (4,044.51 km) |
| Deltona to Orcutt (California) | 2,321.87 mi (3,736.69 km) |
| Deltona to Oregon (Ohio) | 889.51 mi (1,431.53 km) |
| Deltona to Oregon (Wisconsin) | 1,069.98 mi (1,721.97 km) |
| Deltona to Oregon City (Oregon) | 2,510.79 mi (4,040.73 km) |
| Deltona to Orem (Utah) | 1,891.63 mi (3,044.29 km) |
| Deltona to Orinda (California) | 2,422.47 mi (3,898.59 km) |
| Deltona to Orland Park (Illinois) | 953.67 mi (1,534.78 km) |
| Deltona to Orlando (Florida) | 30.48 mi (49.06 km) |
| Deltona to Ormond Beach (Florida) | 28.02 mi (45.10 km) |
| Deltona to Oro Valley (Arizona) | 1,779.71 mi (2,864.16 km) |
| Deltona to Oroville (California) | 2,396.76 mi (3,857.22 km) |
| Deltona to Oshkosh (Wisconsin) | 1,120.32 mi (1,802.99 km) |
| Deltona to Oskaloosa (Iowa) | 1,070.17 mi (1,722.27 km) |
