| Holtsville to Iselin (New Jersey) | 68.74 mi (110.63 km) |
| Holtsville to Isla Vista (California) | 2,569.36 mi (4,134.99 km) |
| Holtsville to Issaquah (Washington) | 2,430.52 mi (3,911.55 km) |
| Holtsville to Ithaca (New York) | 211.20 mi (339.89 km) |
| Holtsville to Ives Estates (Florida) | 1,104.52 mi (1,777.55 km) |
| Holtsville to Jackson (Michigan) | 595.35 mi (958.12 km) |
| Holtsville to Jackson (Mississippi) | 1,116.02 mi (1,796.06 km) |
| Holtsville to Jackson (Missouri) | 920.00 mi (1,480.60 km) |
| Holtsville to Jackson (Tennessee) | 926.44 mi (1,490.96 km) |
| Holtsville to Jackson (Wyoming) | 1,925.08 mi (3,098.12 km) |
| Holtsville to Jacksonville (Alabama) | 848.29 mi (1,365.19 km) |
| Holtsville to Jacksonville (Arkansas) | 1,116.15 mi (1,796.27 km) |
| Holtsville to Jacksonville (Florida) | 870.49 mi (1,400.92 km) |
| Holtsville to Jacksonville (Illinois) | 907.69 mi (1,460.78 km) |
| Holtsville to Jacksonville (North Carolina) | 482.65 mi (776.74 km) |
