| Potomac to Liria | 3,959.26 mi (6,371.82 km) |
| Potomac to Llagostera | 4,055.90 mi (6,527.33 km) |
| Potomac to Llanera | 3,600.06 mi (5,793.74 km) |
| Potomac to Llanes | 3,656.14 mi (5,883.99 km) |
| Potomac to Lleida | 3,957.51 mi (6,368.99 km) |
| Potomac to Lloret de Mar | 4,057.10 mi (6,529.27 km) |
| Potomac to Lluchmayor | 4,129.16 mi (6,645.24 km) |
| Potomac to Loeches | 3,802.73 mi (6,119.91 km) |
| Potomac to Logrono | 3,789.45 mi (6,098.53 km) |
| Potomac to Loja | 3,861.16 mi (6,213.94 km) |
| Potomac to Lora del Rio | 3,779.09 mi (6,081.87 km) |
| Potomac to Lorca | 3,966.02 mi (6,382.69 km) |
| Potomac to Los Alcazares | 4,005.20 mi (6,445.74 km) |
| Potomac to Los Barrios | 3,824.87 mi (6,155.53 km) |
| Potomac to Los Corrales de Buelna | 3,692.48 mi (5,942.47 km) |
