| Ronkonkoma to Isabela (Puerto Rico) | 1,582.99 mi (2,547.58 km) |
| Ronkonkoma to Iselin (New Jersey) | 64.54 mi (103.87 km) |
| Ronkonkoma to Isla Vista (California) | 2,565.26 mi (4,128.39 km) |
| Ronkonkoma to Issaquah (Washington) | 2,427.11 mi (3,906.05 km) |
| Ronkonkoma to Ithaca (New York) | 208.06 mi (334.83 km) |
| Ronkonkoma to Ives Estates (Florida) | 1,102.28 mi (1,773.95 km) |
| Ronkonkoma to Jackson (Michigan) | 591.42 mi (951.80 km) |
| Ronkonkoma to Jackson (Mississippi) | 1,112.01 mi (1,789.60 km) |
| Ronkonkoma to Jackson (Missouri) | 915.78 mi (1,473.81 km) |
| Ronkonkoma to Jackson (Tennessee) | 922.27 mi (1,484.26 km) |
| Ronkonkoma to Jackson (Wyoming) | 1,921.30 mi (3,092.03 km) |
| Ronkonkoma to Jacksonville (Alabama) | 844.39 mi (1,358.92 km) |
| Ronkonkoma to Jacksonville (Arkansas) | 1,111.96 mi (1,789.53 km) |
| Ronkonkoma to Jacksonville (Florida) | 867.53 mi (1,396.16 km) |
| Ronkonkoma to Jacksonville (Illinois) | 903.52 mi (1,454.07 km) |
