| South Portland to Fairmont (West Virginia) | 584.47 mi (940.61 km) |
| South Portland to Fairmount (New York) | 302.16 mi (486.27 km) |
| South Portland to Fairview (California) | 2,699.76 mi (4,344.84 km) |
| South Portland to Fairview (New Jersey) | 271.71 mi (437.27 km) |
| South Portland to Fairview (Oregon) | 2,523.76 mi (4,061.59 km) |
| South Portland to Fairview Heights (Illinois) | 1,080.52 mi (1,738.92 km) |
| South Portland to Fairview Park (Ohio) | 607.27 mi (977.30 km) |
| South Portland to Fairview Shores (Florida) | 1,206.80 mi (1,942.16 km) |
| South Portland to Fairwood (Washington) | 2,476.41 mi (3,985.40 km) |
| South Portland to Fajardo (Puerto Rico) | 1,768.58 mi (2,846.25 km) |
| South Portland to Fall River (Massachusetts) | 138.75 mi (223.30 km) |
| South Portland to Fallbrook (California) | 2,598.03 mi (4,181.13 km) |
| South Portland to Falls Church (Virginia) | 484.92 mi (780.40 km) |
| South Portland to Fargo (North Dakota) | 1,303.73 mi (2,098.15 km) |
| South Portland to Faribault (Minnesota) | 1,140.47 mi (1,835.40 km) |
