| Ronkonkoma to University Place (Washington) | 2,453.32 mi (3,948.24 km) |
| Ronkonkoma to Upland (California) | 2,458.86 mi (3,957.16 km) |
| Ronkonkoma to Upper Arlington (Ohio) | 525.66 mi (845.96 km) |
| Ronkonkoma to Upper Grand Lagoon (Florida) | 1,019.48 mi (1,640.70 km) |
| Ronkonkoma to Upper Montclair (New Jersey) | 56.32 mi (90.65 km) |
| Ronkonkoma to Urbana (Illinois) | 792.88 mi (1,276.01 km) |
| Ronkonkoma to Urbana (Maryland) | 245.21 mi (394.62 km) |
| Ronkonkoma to Urbana (Ohio) | 560.54 mi (902.10 km) |
| Ronkonkoma to Urbandale (Iowa) | 1,072.50 mi (1,726.02 km) |
| Ronkonkoma to Utica (New York) | 191.69 mi (308.50 km) |
| Ronkonkoma to Uvalde (Texas) | 1,698.04 mi (2,732.73 km) |
| Ronkonkoma to Vacaville (California) | 2,572.63 mi (4,140.25 km) |
| Ronkonkoma to Vadnais Heights (Minnesota) | 1,048.09 mi (1,686.73 km) |
| Ronkonkoma to Vail (Arizona) | 2,157.10 mi (3,471.51 km) |
| Ronkonkoma to Valdosta (Georgia) | 891.15 mi (1,434.17 km) |
