| Key West to Harrison (Ohio) | 1,030.32 mi (1,658.14 km) |
| Key West to Harrison (Wisconsin) | 1,405.06 mi (2,261.23 km) |
| Key West to Harrisonburg (Virginia) | 973.45 mi (1,566.62 km) |
| Key West to Hartford (Connecticut) | 1,297.82 mi (2,088.64 km) |
| Key West to Hartford (Wisconsin) | 1,349.01 mi (2,171.03 km) |
| Key West to Hartselle (Alabama) | 749.26 mi (1,205.82 km) |
| Key West to Hartsville (Tennessee) | 857.53 mi (1,380.07 km) |
| Key West to Harvey (Illinois) | 1,224.90 mi (1,971.28 km) |
| Key West to Harvey (Louisiana) | 627.86 mi (1,010.45 km) |
| Key West to Hasbrouck Heights (New Jersey) | 1,210.55 mi (1,948.19 km) |
| Key West to Haslett (Michigan) | 1,265.54 mi (2,036.70 km) |
| Key West to Hastings (Minnesota) | 1,525.66 mi (2,455.31 km) |
| Key West to Hastings (Nebraska) | 1,465.23 mi (2,358.05 km) |
| Key West to Hattiesburg (Mississippi) | 654.49 mi (1,053.31 km) |
| Key West to Hauppauge (New York) | 1,227.16 mi (1,974.93 km) |
