| Frederick to Haverhill (Massachusetts) | 402.39 mi (647.59 km) |
| Frederick to Havre de Grace (Maryland) | 69.74 mi (112.23 km) |
| Frederick to Hawaiian Gardens (California) | 2,267.88 mi (3,649.81 km) |
| Frederick to Hawaiian Paradise Park (Hawaii) | 4,719.24 mi (7,594.89 km) |
| Frederick to Hawthorne (California) | 2,280.36 mi (3,669.89 km) |
| Frederick to Hawthorne (New Jersey) | 201.52 mi (324.31 km) |
| Frederick to Hayden (Idaho) | 2,028.90 mi (3,265.20 km) |
| Frederick to Hayesville (Oregon) | 2,331.62 mi (3,752.38 km) |
| Frederick to Hays (Kansas) | 1,171.47 mi (1,885.29 km) |
| Frederick to Haysville (Kansas) | 1,083.61 mi (1,743.90 km) |
| Frederick to Hayward (California) | 2,392.32 mi (3,850.06 km) |
| Frederick to Hazel Crest (Illinois) | 559.33 mi (900.16 km) |
| Frederick to Hazel Dell (Washington) | 2,310.92 mi (3,719.07 km) |
| Frederick to Hazel Park (Michigan) | 362.84 mi (583.94 km) |
| Frederick to Hazelwood (Missouri) | 696.43 mi (1,120.79 km) |
