| Ronkonkoma to Orangeburg (South Carolina) | 660.46 mi (1,062.90 km) |
| Ronkonkoma to Orangevale (California) | 2,527.03 mi (4,066.86 km) |
| Ronkonkoma to Orchards (Washington) | 2,469.47 mi (3,974.23 km) |
| Ronkonkoma to Orcutt (California) | 2,581.70 mi (4,154.85 km) |
| Ronkonkoma to Oregon (Ohio) | 538.50 mi (866.63 km) |
| Ronkonkoma to Oregon (Wisconsin) | 848.25 mi (1,365.12 km) |
| Ronkonkoma to Oregon City (Oregon) | 2,476.79 mi (3,986.01 km) |
| Ronkonkoma to Orem (Utah) | 2,008.87 mi (3,232.96 km) |
| Ronkonkoma to Orinda (California) | 2,594.72 mi (4,175.79 km) |
| Ronkonkoma to Orland Park (Illinois) | 767.15 mi (1,234.61 km) |
| Ronkonkoma to Orlando (Florida) | 970.11 mi (1,561.24 km) |
| Ronkonkoma to Ormond Beach (Florida) | 913.06 mi (1,469.43 km) |
| Ronkonkoma to Oro Valley (Arizona) | 2,159.45 mi (3,475.29 km) |
| Ronkonkoma to Oroville (California) | 2,526.61 mi (4,066.18 km) |
| Ronkonkoma to Oshkosh (Wisconsin) | 816.89 mi (1,314.66 km) |
