| Holtsville to Harrison (Ohio) | 629.88 mi (1,013.69 km) |
| Holtsville to Harrison (Wisconsin) | 809.76 mi (1,303.19 km) |
| Holtsville to Harrisonburg (Virginia) | 350.86 mi (564.66 km) |
| Holtsville to Hartford (Connecticut) | 68.51 mi (110.26 km) |
| Holtsville to Hartford (Wisconsin) | 804.14 mi (1,294.14 km) |
| Holtsville to Hartselle (Alabama) | 877.13 mi (1,411.60 km) |
| Holtsville to Hartsville (Tennessee) | 770.04 mi (1,239.27 km) |
| Holtsville to Harvey (Illinois) | 760.34 mi (1,223.65 km) |
| Holtsville to Harvey (Louisiana) | 1,216.83 mi (1,958.29 km) |
| Holtsville to Hasbrouck Heights (New Jersey) | 53.92 mi (86.77 km) |
| Holtsville to Haslett (Michigan) | 599.80 mi (965.28 km) |
| Holtsville to Hastings (Minnesota) | 1,037.63 mi (1,669.91 km) |
| Holtsville to Hastings (Nebraska) | 1,322.98 mi (2,129.14 km) |
| Holtsville to Hattiesburg (Mississippi) | 1,118.27 mi (1,799.68 km) |
| Holtsville to Hauppauge (New York) | 8.71 mi (14.02 km) |
