| Uniondale to Orangeburg (South Carolina) | 639.62 mi (1,029.38 km) |
| Uniondale to Orangevale (California) | 2,504.36 mi (4,030.37 km) |
| Uniondale to Orchards (Washington) | 2,449.62 mi (3,942.29 km) |
| Uniondale to Orcutt (California) | 2,557.93 mi (4,116.59 km) |
| Uniondale to Oregon (Ohio) | 515.30 mi (829.30 km) |
| Uniondale to Oregon (Wisconsin) | 826.14 mi (1,329.55 km) |
| Uniondale to Oregon City (Oregon) | 2,456.79 mi (3,953.82 km) |
| Uniondale to Orem (Utah) | 1,986.01 mi (3,196.18 km) |
| Uniondale to Orinda (California) | 2,571.88 mi (4,139.04 km) |
| Uniondale to Orland Park (Illinois) | 743.82 mi (1,197.06 km) |
| Uniondale to Orlando (Florida) | 952.50 mi (1,532.90 km) |
| Uniondale to Ormond Beach (Florida) | 895.21 mi (1,440.70 km) |
| Uniondale to Oro Valley (Arizona) | 2,134.54 mi (3,435.20 km) |
| Uniondale to Oroville (California) | 2,504.22 mi (4,030.16 km) |
| Uniondale to Oshkosh (Wisconsin) | 796.12 mi (1,281.23 km) |
