| Potomac to El Astillero | 3,700.25 mi (5,954.98 km) |
| Potomac to El Ejido | 3,938.85 mi (6,338.97 km) |
| Potomac to El Escorial | 3,762.32 mi (6,054.87 km) |
| Potomac to El Espinar | 3,752.64 mi (6,039.29 km) |
| Potomac to El Molar | 3,784.10 mi (6,089.92 km) |
| Potomac to El Prat de Llobregat | 4,034.41 mi (6,492.76 km) |
| Potomac to El Puerto de Santa Maria | 3,775.58 mi (6,076.22 km) |
| Potomac to El Viso del Alcor | 3,777.09 mi (6,078.64 km) |
| Potomac to Elche | 3,996.17 mi (6,431.21 km) |
| Potomac to Elda | 3,984.82 mi (6,412.95 km) |
| Potomac to Elgoibar | 3,770.32 mi (6,067.74 km) |
| Potomac to Erandio | 3,742.10 mi (6,022.33 km) |
| Potomac to Ermua | 3,767.15 mi (6,062.64 km) |
| Potomac to Esparraguera | 4,017.39 mi (6,465.36 km) |
| Potomac to Espartinas | 3,757.25 mi (6,046.71 km) |
