| Potomac to Les Sorinieres | 3,708.70 mi (5,968.57 km) |
| Potomac to Lescar | 3,859.57 mi (6,211.38 km) |
| Potomac to Lesquin | 3,820.08 mi (6,147.83 km) |
| Potomac to Levallois-Perret | 3,828.97 mi (6,162.14 km) |
| Potomac to Lezignan-Corbieres | 4,008.18 mi (6,450.54 km) |
| Potomac to Libourne | 3,823.64 mi (6,153.56 km) |
| Potomac to Lieusaint | 3,846.82 mi (6,190.86 km) |
| Potomac to Lievin | 3,810.64 mi (6,132.64 km) |
| Potomac to Lille | 3,816.97 mi (6,142.82 km) |
| Potomac to Lillebonne | 3,739.71 mi (6,018.48 km) |
| Potomac to Lillers | 3,794.98 mi (6,107.43 km) |
| Potomac to Limay | 3,803.21 mi (6,120.68 km) |
| Potomac to Limeil-Brevannes | 3,841.30 mi (6,181.98 km) |
| Potomac to Limoges | 3,865.84 mi (6,221.47 km) |
| Potomac to Limoux | 3,987.90 mi (6,417.91 km) |
