| Ronkonkoma to Reedley (California) | 2,485.56 mi (4,000.13 km) |
| Ronkonkoma to Reidsville (North Carolina) | 469.15 mi (755.02 km) |
| Ronkonkoma to Reisterstown (Maryland) | 216.01 mi (347.63 km) |
| Ronkonkoma to Rendon (Texas) | 1,445.55 mi (2,326.39 km) |
| Ronkonkoma to Reno (Nevada) | 2,438.51 mi (3,924.41 km) |
| Ronkonkoma to Renton (Washington) | 2,434.39 mi (3,917.78 km) |
| Ronkonkoma to Republic (Missouri) | 1,117.62 mi (1,798.63 km) |
| Ronkonkoma to Reston (Virginia) | 257.86 mi (414.98 km) |
| Ronkonkoma to Revere (Massachusetts) | 156.37 mi (251.65 km) |
| Ronkonkoma to Rexburg (Idaho) | 1,968.53 mi (3,168.04 km) |
| Ronkonkoma to Reynoldsburg (Ohio) | 512.00 mi (823.99 km) |
| Ronkonkoma to Rialto (California) | 2,444.72 mi (3,934.39 km) |
| Ronkonkoma to Richardson (Texas) | 1,405.58 mi (2,262.07 km) |
| Ronkonkoma to Richfield (Minnesota) | 1,056.23 mi (1,699.84 km) |
| Ronkonkoma to Richfield (Wisconsin) | 792.76 mi (1,275.82 km) |
