| Ronkonkoma to Hamtramck (Michigan) | 524.45 mi (844.03 km) |
| Ronkonkoma to Hanahan (South Carolina) | 663.19 mi (1,067.30 km) |
| Ronkonkoma to Hanford (California) | 2,503.17 mi (4,028.46 km) |
| Ronkonkoma to Hannibal (Missouri) | 964.53 mi (1,552.26 km) |
| Ronkonkoma to Hanover (Pennsylvania) | 214.54 mi (345.28 km) |
| Ronkonkoma to Hanover Park (Illinois) | 781.76 mi (1,258.13 km) |
| Ronkonkoma to Happy Valley (Oregon) | 2,471.57 mi (3,977.60 km) |
| Ronkonkoma to Harker Heights (Texas) | 1,521.07 mi (2,447.93 km) |
| Ronkonkoma to Harlingen (Texas) | 1,728.91 mi (2,782.42 km) |
| Ronkonkoma to Harper Woods (Michigan) | 518.55 mi (834.52 km) |
| Ronkonkoma to Harrisburg (North Carolina) | 557.71 mi (897.54 km) |
| Ronkonkoma to Harrisburg (Pennsylvania) | 200.75 mi (323.07 km) |
| Ronkonkoma to Harrison (Arkansas) | 1,122.97 mi (1,807.25 km) |
| Ronkonkoma to Harrison (New Jersey) | 53.98 mi (86.87 km) |
| Ronkonkoma to Harrison (New York) | 34.57 mi (55.63 km) |
