| Holtsville to Odessa (Texas) | 1,733.46 mi (2,789.73 km) |
| Holtsville to Ogden (Utah) | 2,012.04 mi (3,238.06 km) |
| Holtsville to Oildale (California) | 2,498.28 mi (4,020.60 km) |
| Holtsville to Ojus (Florida) | 1,104.49 mi (1,777.51 km) |
| Holtsville to Okemos (Michigan) | 599.87 mi (965.40 km) |
| Holtsville to Oklahoma City (Oklahoma) | 1,374.94 mi (2,212.75 km) |
| Holtsville to Okmulgee (Oklahoma) | 1,293.01 mi (2,080.90 km) |
| Holtsville to Olathe (Kansas) | 1,159.74 mi (1,866.42 km) |
| Holtsville to Old Jamestown (Missouri) | 923.37 mi (1,486.01 km) |
| Holtsville to Oldsmar (Florida) | 1,036.89 mi (1,668.71 km) |
| Holtsville to Olean (New York) | 292.42 mi (470.60 km) |
| Holtsville to Olive Branch (Mississippi) | 999.30 mi (1,608.21 km) |
| Holtsville to Olivehurst (California) | 2,539.32 mi (4,086.64 km) |
| Holtsville to Olney (Maryland) | 242.25 mi (389.86 km) |
| Holtsville to Olympia (Washington) | 2,474.78 mi (3,982.77 km) |
