| South Portland to Havelock (North Carolina) | 698.19 mi (1,123.62 km) |
| South Portland to Haverhill (Massachusetts) | 70.99 mi (114.25 km) |
| South Portland to Havre de Grace (Maryland) | 412.35 mi (663.62 km) |
| South Portland to Hawaiian Gardens (California) | 2,624.60 mi (4,223.89 km) |
| South Portland to Hawaiian Paradise Park (Hawaii) | 5,035.01 mi (8,103.06 km) |
| South Portland to Hawthorne (California) | 2,635.48 mi (4,241.40 km) |
| South Portland to Hawthorne (New Jersey) | 270.51 mi (435.34 km) |
| South Portland to Hayden (Idaho) | 2,228.52 mi (3,586.46 km) |
| South Portland to Hayesville (Oregon) | 2,559.94 mi (4,119.82 km) |
| South Portland to Hays (Kansas) | 1,534.94 mi (2,470.25 km) |
| South Portland to Haysville (Kansas) | 1,472.90 mi (2,370.40 km) |
| South Portland to Hayward (California) | 2,702.49 mi (4,349.24 km) |
| South Portland to Hazel Crest (Illinois) | 894.58 mi (1,439.69 km) |
| South Portland to Hazel Dell (Washington) | 2,531.24 mi (4,073.64 km) |
| South Portland to Hazel Park (Michigan) | 651.09 mi (1,047.83 km) |
