| South Portland to Anderson (California) | 2,633.79 mi (4,238.68 km) |
| South Portland to Anderson (Indiana) | 827.95 mi (1,332.46 km) |
| South Portland to Anderson (South Carolina) | 912.22 mi (1,468.08 km) |
| South Portland to Anderson Creek (North Carolina) | 739.36 mi (1,189.88 km) |
| South Portland to Andover (Kansas) | 1,458.54 mi (2,347.29 km) |
| South Portland to Andover (Minnesota) | 1,138.00 mi (1,831.44 km) |
| South Portland to Andrews (Texas) | 1,907.47 mi (3,069.77 km) |
| South Portland to Angleton (Texas) | 1,707.05 mi (2,747.24 km) |
| South Portland to Ankeny (Iowa) | 1,187.51 mi (1,911.11 km) |
| South Portland to Ann Arbor (Michigan) | 685.38 mi (1,103.01 km) |
| South Portland to Anna (Texas) | 1,578.74 mi (2,540.73 km) |
| South Portland to Annandale (Virginia) | 488.26 mi (785.78 km) |
| South Portland to Annapolis (Maryland) | 455.55 mi (733.14 km) |
| South Portland to Annapolis Neck (Maryland) | 456.87 mi (735.26 km) |
| South Portland to Anniston (Alabama) | 1,080.92 mi (1,739.58 km) |
