| South Portland to Hickory Hills (Illinois) | 898.83 mi (1,446.53 km) |
| South Portland to Hicksville (New York) | 258.16 mi (415.46 km) |
| South Portland to Hidalgo (Texas) | 1,977.96 mi (3,183.23 km) |
| South Portland to High Point (North Carolina) | 736.51 mi (1,185.30 km) |
| South Portland to Highland (California) | 2,569.74 mi (4,135.59 km) |
| South Portland to Highland (Illinois) | 1,059.92 mi (1,705.78 km) |
| South Portland to Highland (Indiana) | 883.49 mi (1,421.84 km) |
| South Portland to Highland (Utah) | 2,119.41 mi (3,410.85 km) |
| South Portland to Highland City (Florida) | 1,259.52 mi (2,027.00 km) |
| South Portland to Highland Park (Illinois) | 890.65 mi (1,433.37 km) |
| South Portland to Highland Park (New Jersey) | 302.99 mi (487.61 km) |
| South Portland to Highland Springs (Virginia) | 558.88 mi (899.44 km) |
| South Portland to Highland Village (Texas) | 1,613.14 mi (2,596.10 km) |
| South Portland to Highlands Ranch (Colorado) | 1,801.02 mi (2,898.45 km) |
| South Portland to Hillcrest (California) | 2,617.60 mi (4,212.63 km) |
