| Holtsville to Hagerstown (Maryland) | 259.64 mi (417.85 km) |
| Holtsville to Haines City (Florida) | 1,003.07 mi (1,614.29 km) |
| Holtsville to Halawa (Hawaii) | 5,007.26 mi (8,058.41 km) |
| Holtsville to Half Moon Bay (California) | 2,621.96 mi (4,219.64 km) |
| Holtsville to Halfway (Maryland) | 262.63 mi (422.67 km) |
| Holtsville to Hallandale Beach (Florida) | 1,102.22 mi (1,773.84 km) |
| Holtsville to Haltom City (Texas) | 1,443.37 mi (2,322.88 km) |
| Holtsville to Ham Lake (Minnesota) | 1,060.14 mi (1,706.13 km) |
| Holtsville to Hamilton (Ohio) | 616.22 mi (991.70 km) |
| Holtsville to Hamilton Square (New Jersey) | 93.70 mi (150.80 km) |
| Holtsville to Hammond (Indiana) | 752.01 mi (1,210.25 km) |
| Holtsville to Hammond (Louisiana) | 1,205.58 mi (1,940.19 km) |
| Holtsville to Hammonton (New Jersey) | 120.95 mi (194.66 km) |
| Holtsville to Hampton (Virginia) | 314.90 mi (506.79 km) |
| Holtsville to Hampton Bays (New York) | 27.58 mi (44.38 km) |
