| South Portland to Effingham (Illinois) | 994.32 mi (1,600.21 km) |
| South Portland to Eggertsville (New York) | 430.54 mi (692.89 km) |
| South Portland to Egypt Lake-Leto (Florida) | 1,274.40 mi (2,050.94 km) |
| South Portland to El Cajon (California) | 2,604.51 mi (4,191.55 km) |
| South Portland to El Campo (Texas) | 1,743.38 mi (2,805.69 km) |
| South Portland to El Centro (California) | 2,535.00 mi (4,079.68 km) |
| South Portland to El Cerrito (California) | 2,705.09 mi (4,353.42 km) |
| South Portland to El Dorado (Arkansas) | 1,401.95 mi (2,256.22 km) |
| South Portland to El Dorado (Kansas) | 1,441.08 mi (2,319.20 km) |
| South Portland to El Dorado Hills (California) | 2,621.49 mi (4,218.88 km) |
| South Portland to El Mirage (Arizona) | 2,345.52 mi (3,774.75 km) |
| South Portland to El Monte (California) | 2,614.19 mi (4,207.13 km) |
| South Portland to El Paso (Texas) | 2,115.23 mi (3,404.14 km) |
| South Portland to El Paso de Robles (California) | 2,693.83 mi (4,335.30 km) |
| South Portland to El Reno (Oklahoma) | 1,567.08 mi (2,521.97 km) |
