| East Islip to Joliet (Illinois) | 779.75 mi (1,254.88 km) |
| East Islip to Jonesboro (Arkansas) | 1,005.40 mi (1,618.03 km) |
| East Islip to Joplin (Missouri) | 1,170.41 mi (1,883.60 km) |
| East Islip to Joppatowne (Maryland) | 190.14 mi (306.00 km) |
| East Islip to Juana Díaz (Puerto Rico) | 1,616.05 mi (2,600.78 km) |
| East Islip to Junction City (Kansas) | 1,256.40 mi (2,021.98 km) |
| East Islip to Juneau (Alaska) | 2,871.15 mi (4,620.68 km) |
| East Islip to Jupiter (Florida) | 1,032.51 mi (1,661.66 km) |
| East Islip to Jupiter Farms (Florida) | 1,034.70 mi (1,665.19 km) |
| East Islip to Jurupa Valley (California) | 2,449.35 mi (3,941.85 km) |
| East Islip to Justice (Illinois) | 763.39 mi (1,228.56 km) |
| East Islip to Kahului (Hawaii) | 4,948.17 mi (7,963.30 km) |
| East Islip to Kailua (Hawaii) | 4,991.59 mi (8,033.19 km) |
| East Islip to Kalamazoo (Michigan) | 649.99 mi (1,046.07 km) |
| East Islip to Kalispell (Montana) | 2,066.74 mi (3,326.10 km) |
